forked from pool/bzip2
e8b7e041b9
- bzlib: open file descriptors with O_CLOEXEC, but just like the zlib case, only when bzopen() is used and not bzdopen() to avoid messing up with the caller's semantics. It is responsability of to initiator to set that flag in such case. - Replace error prone list of exported symbols with proper use of GCC visibility features. OBS-URL: https://build.opensuse.org/request/show/99345 OBS-URL: https://build.opensuse.org/package/show/Archiving/bzip2?expand=0&rev=26
369 lines
13 KiB
Diff
369 lines
13 KiB
Diff
--- /dev/null
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+++ autogen.sh
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@@ -0,0 +1,8 @@
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+mv LICENSE COPYING
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+mv CHANGES NEWS
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+touch AUTHORS
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+touch ChangeLog
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+libtoolize --force
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+aclocal
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+automake --add-missing --gnu
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+autoconf
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--- /dev/null
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+++ README.autotools
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@@ -0,0 +1,39 @@
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+bzip2 autoconfiscated
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+=====================
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+
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+Temporarily at http://ftp.suse.com/pub/people/sbrabec/bzip2/ expecting
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+that it will become a new upstream version to prevent per-distribution
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+shared library patching done by nearly each Linux vendor separately.
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+
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+Autoconfiscation brings standard ./configure ; make ; make install
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+installation, seamless support of DESTDIR, automatic check for supported
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+CFLAGS, standard shared library support, automatic large files CFLAGS
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+check and all things that are supported by automake.
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+
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+It makes obsolete Makefile-libbz2_so and README.COMPILATION.PROBLEMS.
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+Now configure should automatically detect correct build flags.
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+
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+In case of any problem or question with autotools support feel free to
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+contact me: Stanislav Brabec <sbrabec@suse.cz>
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+
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+Autoconfiscated version binaries are exactly equal to
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+bzip2-1.0.5.tar.gz. There are only few changes. See below.
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+
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+
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+New features:
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+
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+Trivial link man pages for bzcat and bunzip2 added.
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+
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+bzip2.pc file for pkg-config. Packages can use it for checks.
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+
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+
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+Incompatible changes:
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+
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+soname change. Libtool has no support for two parts soname suffix (e. g.
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+libbz2.so.1.0). It must be a single number (e. g. libbz2.so.1). That is
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+why soname must change. But I see not a big problem with it. Several
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+distributions already use the new number instead of the non-standard
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+number from Makefile-libbz2_so.
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+
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+To be super-safe, I incremented minor number of the library file, so
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+both instances of the shared library can live together.
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--- /dev/null
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+++ configure.ac
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@@ -0,0 +1,62 @@
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+# -*- Autoconf -*-
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+# Process this file with autoconf to produce a configure script.
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+
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+AC_PREREQ([2.57])
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+AC_INIT([bzip2], [1.0.5], [Julian Seward <jseward@bzip.org>])
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+BZIP2_LT_CURRENT=1
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+BZIP2_LT_REVISION=6
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+BZIP2_LT_AGE=0
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+AC_CONFIG_SRCDIR([bzlib.h])
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+AC_CONFIG_MACRO_DIR([m4])
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+
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+AM_INIT_AUTOMAKE([foreign subdir-objects])
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+AM_MAINTAINER_MODE
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+
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+# Checks for programs.
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+AC_PROG_AWK
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+AC_PROG_CC_STDC
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+AC_PROG_CC_C_O
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+AC_USE_SYSTEM_EXTENSIONS
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+AC_PROG_INSTALL
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+AC_PROG_LN_S
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+AC_PROG_MAKE_SET
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+LT_INIT([disable-static pic-only])
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+PKG_PROG_PKG_CONFIG
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+gl_VISIBILITY
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+# Checks for libraries.
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+
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+# Checks for header files.
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+
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+# Checks for typedefs, structures, and compiler characteristics.
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+
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+# Check for system features.
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+AC_SYS_LARGEFILE
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+
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+AC_MSG_CHECKING([whether compiler understands -Wall])
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+save_CFLAGS="$CFLAGS"
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+CFLAGS="$CFLAGS -Wall"
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+AC_TRY_COMPILE([], [], [
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+ AC_MSG_RESULT([yes])
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+], [
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+ AC_MSG_RESULT([no])
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+ CFLAGS="$save_CFLAGS"
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+])
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+
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+AC_MSG_CHECKING([whether compiler understands -Winline])
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+save_CFLAGS="$CFLAGS"
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+CFLAGS="$CFLAGS -Winline"
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+AC_TRY_COMPILE([], [], [
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+ AC_MSG_RESULT([yes])
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+], [
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+ AC_MSG_RESULT([no])
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+ CFLAGS="$save_CFLAGS"
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+])
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+
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+# Checks for library functions.
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+
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+# Write the output.
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+AC_SUBST([BZIP2_LT_CURRENT])
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+AC_SUBST([BZIP2_LT_REVISION])
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+AC_SUBST([BZIP2_LT_AGE])
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+AC_CONFIG_FILES([Makefile bzip2.pc])
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+AC_OUTPUT
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--- /dev/null
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+++ Makefile.am
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@@ -0,0 +1,137 @@
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+ACLOCAL_AMFLAGS = -I m4
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+lib_LTLIBRARIES = libbz2.la
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+AM_CFLAGS = $(CFLAG_VISIBILITY)
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+libbz2_la_SOURCES = \
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+ blocksort.c \
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+ huffman.c \
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+ crctable.c \
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+ randtable.c \
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+ compress.c \
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+ decompress.c \
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+ bzlib.c
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+
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+libbz2_la_LDFLAGS = \
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+ -version-info $(BZIP2_LT_CURRENT):$(BZIP2_LT_REVISION):$(BZIP2_LT_AGE) \
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+ -no-undefined
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+
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+include_HEADERS = bzlib.h
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+
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+noinst_HEADERS = bzlib_private.h
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+
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+bin_PROGRAMS = bzip2 bzip2recover
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+
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+bzip2_SOURCES = bzip2.c
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+bzip2_LDADD = libbz2.la
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+
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+bzip2recover_SOURCES = bzip2recover.c
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+bzip2recover_LDADD = libbz2.la
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+
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+bin_SCRIPTS = bzgrep bzmore bzdiff
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+
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+man_MANS = bzip2.1 bzgrep.1 bzmore.1 bzdiff.1
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+
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+pkgconfigdir = $(libdir)/pkgconfig
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+pkgconfig_DATA = bzip2.pc
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+
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+$(pkgconfig_DATA): $(srcdir)/bzip2.pc.in config.status
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+
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+install-exec-hook:
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+ rm -f $(DESTDIR)$(bindir)/`echo "bunzip2" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ rm -f $(DESTDIR)$(bindir)/`echo "bzcat" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ rm -f $(DESTDIR)$(bindir)/`echo "bzegrep" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ rm -f $(DESTDIR)$(bindir)/`echo "bzfgrep" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ rm -f $(DESTDIR)$(bindir)/`echo "bzless" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ rm -f $(DESTDIR)$(bindir)/`echo "bzcmp" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ $(LN_S) `echo "bzip2" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'` $(DESTDIR)$(bindir)/`echo "bunzip2" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ $(LN_S) `echo "bzip2" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'` $(DESTDIR)$(bindir)/`echo "bzcat" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ $(LN_S) `echo "bzgrep" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'` $(DESTDIR)$(bindir)/`echo "bzegrep" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ $(LN_S) `echo "bzgrep" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'` $(DESTDIR)$(bindir)/`echo "bzfgrep" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ $(LN_S) `echo "bzmore" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'` $(DESTDIR)$(bindir)/`echo "bzless" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ $(LN_S) `echo "bzdiff" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'` $(DESTDIR)$(bindir)/`echo "bzcmp" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+
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+install-data-hook:
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+ echo ".so man1/`echo "bzip2" | sed 's,^.*/,,;$(transform)'`.1" >$(DESTDIR)$(mandir)/man1/`echo "bunzip2" | sed 's,^.*/,,;$(transform)'`.1
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+ echo ".so man1/`echo "bzip2" | sed 's,^.*/,,;$(transform)'`.1" >$(DESTDIR)$(mandir)/man1/`echo "bzcat" | sed 's,^.*/,,;$(transform)'`.1
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+ echo ".so man1/`echo "bzgrep" | sed 's,^.*/,,;$(transform)'`.1" >$(DESTDIR)$(mandir)/man1/`echo "bzegrep" | sed 's,^.*/,,;$(transform)'`.1
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+ echo ".so man1/`echo "bzgrep" | sed 's,^.*/,,;$(transform)'`.1" >$(DESTDIR)$(mandir)/man1/`echo "bzfgrep" | sed 's,^.*/,,;$(transform)'`.1
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+ echo ".so man1/`echo "bzmore" | sed 's,^.*/,,;$(transform)'`.1" >$(DESTDIR)$(mandir)/man1/`echo "bzless" | sed 's,^.*/,,;$(transform)'`.1
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+ echo ".so man1/`echo "bzdiff" | sed 's,^.*/,,;$(transform)'`.1" >$(DESTDIR)$(mandir)/man1/`echo "bzcmp" | sed 's,^.*/,,;$(transform)'`.1
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+
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+uninstall-hook:
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+ rm -f $(DESTDIR)$(bindir)/`echo "bunzip2" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ rm -f $(DESTDIR)$(bindir)/`echo "bzcat" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ rm -f $(DESTDIR)$(bindir)/`echo "bzegrep" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ rm -f $(DESTDIR)$(bindir)/`echo "bzfgrep" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ rm -f $(DESTDIR)$(bindir)/`echo "bzless" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ rm -f $(DESTDIR)$(bindir)/`echo "bzcmp" | sed 's,^.*/,,;$(transform);s/$$/$(EXEEXT)/'`
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+ rm -f $(DESTDIR)$(mandir)/man1/`echo "bunzip2" | sed 's,^.*/,,;$(transform)'`.1
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+ rm -f $(DESTDIR)$(mandir)/man1/`echo "bzcat" | sed 's,^.*/,,;$(transform)'`.1
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+ rm -f $(DESTDIR)$(mandir)/man1/`echo "bzegrep" | sed 's,^.*/,,;$(transform)'`.1
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+ rm -f $(DESTDIR)$(mandir)/man1/`echo "bzfgrep" | sed 's,^.*/,,;$(transform)'`.1
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+ rm -f $(DESTDIR)$(mandir)/man1/`echo "bzless" | sed 's,^.*/,,;$(transform)'`.1
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+ rm -f $(DESTDIR)$(mandir)/man1/`echo "bzcmp" | sed 's,^.*/,,;$(transform)'`.1
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+
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+test: bzip2
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+ @cat $(srcdir)/words1
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+ ./bzip2 -1 <$(srcdir)/sample1.ref >sample1.rb2
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+ ./bzip2 -2 <$(srcdir)/sample2.ref >sample2.rb2
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+ ./bzip2 -3 <$(srcdir)/sample3.ref >sample3.rb2
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+ ./bzip2 -d <$(srcdir)/sample1.bz2 >sample1.tst
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+ ./bzip2 -d <$(srcdir)/sample2.bz2 >sample2.tst
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+ ./bzip2 -ds <$(srcdir)/sample3.bz2 >sample3.tst
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+ cmp $(srcdir)/sample1.bz2 sample1.rb2
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+ cmp $(srcdir)/sample2.bz2 sample2.rb2
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+ cmp $(srcdir)/sample3.bz2 sample3.rb2
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+ cmp sample1.tst $(srcdir)/sample1.ref
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+ cmp sample2.tst $(srcdir)/sample2.ref
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+ cmp sample3.tst $(srcdir)/sample3.ref
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+ @cat $(srcdir)/words3
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+
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+manual: $(srcdir)/manual.html $(srcdir)/manual.ps $(srcdir)/manual.pdf
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+
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+manual.ps: $(MANUAL_SRCS)
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+ cd $(srcdir); ./xmlproc.sh -ps manual.xml
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+
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+manual.pdf: $(MANUAL_SRCS)
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+ cd $(srcdir); ./xmlproc.sh -pdf manual.xml
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+
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+manual.html: $(MANUAL_SRCS)
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+ cd $(srcdir); ./xmlproc.sh -html manual.xml
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+
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+EXTRA_DIST = \
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+ $(bin_SCRIPTS) \
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+ $(man_MANS) \
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+ README.autotools \
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+ README.XML.STUFF \
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+ bz-common.xsl \
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+ bz-fo.xsl \
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+ bz-html.xsl \
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+ bzip.css \
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+ bzip2.1.preformatted \
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+ bzip2.pc.in \
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+ bzip2.txt \
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+ dlltest.c \
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+ dlltest.dsp \
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+ entities.xml \
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+ format.pl \
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+ libbz2.def \
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+ libbz2.dsp \
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+ makefile.msc \
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+ manual.html \
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+ manual.pdf \
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+ manual.ps \
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+ manual.xml \
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+ mk251.c \
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+ sample1.bz2 \
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+ sample1.ref \
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+ sample2.bz2 \
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+ sample2.ref \
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+ sample3.bz2 \
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+ sample3.ref \
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+ spewG.c \
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+ unzcrash.c \
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+ words0 \
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+ words1 \
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+ words2 \
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+ words3 \
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+ xmlproc.sh
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--- /dev/null
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+++ bzip2.pc.in
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@@ -0,0 +1,11 @@
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+prefix=@prefix@
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+exec_prefix=@exec_prefix@
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+bindir=@bindir@
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+libdir=@libdir@
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+includedir=@includedir@
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+
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+Name: bzip2
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+Description: Lossless, block-sorting data compression
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+Version: @VERSION@
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+Libs: -L${libdir} -lbz2
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+Cflags: -I${includedir}
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--- /dev/null
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+++ m4/visibility.m4
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@@ -0,0 +1,78 @@
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+# visibility.m4 serial 4 (gettext-0.18.2)
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+dnl Copyright (C) 2005, 2008, 2010-2011 Free Software Foundation, Inc.
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+dnl This file is free software; the Free Software Foundation
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+dnl gives unlimited permission to copy and/or distribute it,
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+dnl with or without modifications, as long as this notice is preserved.
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+
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+dnl From Bruno Haible.
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+
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+dnl Tests whether the compiler supports the command-line option
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+dnl -fvisibility=hidden and the function and variable attributes
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+dnl __attribute__((__visibility__("hidden"))) and
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+dnl __attribute__((__visibility__("default"))).
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+dnl Does *not* test for __visibility__("protected") - which has tricky
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+dnl semantics (see the 'vismain' test in glibc) and does not exist e.g. on
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+dnl MacOS X.
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+dnl Does *not* test for __visibility__("internal") - which has processor
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+dnl dependent semantics.
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+dnl Does *not* test for #pragma GCC visibility push(hidden) - which is
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+dnl "really only recommended for legacy code".
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+dnl Set the variable CFLAG_VISIBILITY.
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+dnl Defines and sets the variable HAVE_VISIBILITY.
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+
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+AC_DEFUN([gl_VISIBILITY],
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+[
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+ AC_REQUIRE([AC_PROG_CC])
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+ CFLAG_VISIBILITY=
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+ HAVE_VISIBILITY=0
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+ if test -n "$GCC"; then
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+ dnl First, check whether -Werror can be added to the command line, or
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+ dnl whether it leads to an error because of some other option that the
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+ dnl user has put into $CC $CFLAGS $CPPFLAGS.
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+ AC_MSG_CHECKING([whether the -Werror option is usable])
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+ AC_CACHE_VAL([gl_cv_cc_vis_werror], [
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+ gl_save_CFLAGS="$CFLAGS"
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+ CFLAGS="$CFLAGS -Werror"
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+ AC_COMPILE_IFELSE(
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+ [AC_LANG_PROGRAM([[]], [[]])],
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+ [gl_cv_cc_vis_werror=yes],
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+ [gl_cv_cc_vis_werror=no])
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+ CFLAGS="$gl_save_CFLAGS"])
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+ AC_MSG_RESULT([$gl_cv_cc_vis_werror])
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+ dnl Now check whether visibility declarations are supported.
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+ AC_MSG_CHECKING([for simple visibility declarations])
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+ AC_CACHE_VAL([gl_cv_cc_visibility], [
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+ gl_save_CFLAGS="$CFLAGS"
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+ CFLAGS="$CFLAGS -fvisibility=hidden"
|
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+ dnl We use the option -Werror and a function dummyfunc, because on some
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+ dnl platforms (Cygwin 1.7) the use of -fvisibility triggers a warning
|
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+ dnl "visibility attribute not supported in this configuration; ignored"
|
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+ dnl at the first function definition in every compilation unit, and we
|
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+ dnl don't want to use the option in this case.
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+ if test $gl_cv_cc_vis_werror = yes; then
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+ CFLAGS="$CFLAGS -Werror"
|
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+ fi
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+ AC_COMPILE_IFELSE(
|
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+ [AC_LANG_PROGRAM(
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|
+ [[extern __attribute__((__visibility__("hidden"))) int hiddenvar;
|
|
+ extern __attribute__((__visibility__("default"))) int exportedvar;
|
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+ extern __attribute__((__visibility__("hidden"))) int hiddenfunc (void);
|
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+ extern __attribute__((__visibility__("default"))) int exportedfunc (void);
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+ void dummyfunc (void) {}
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+ ]],
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+ [[]])],
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+ [gl_cv_cc_visibility=yes],
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+ [gl_cv_cc_visibility=no])
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+ CFLAGS="$gl_save_CFLAGS"])
|
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+ AC_MSG_RESULT([$gl_cv_cc_visibility])
|
|
+ if test $gl_cv_cc_visibility = yes; then
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|
+ CFLAG_VISIBILITY="-fvisibility=hidden"
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|
+ HAVE_VISIBILITY=1
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+ AC_DEFINE([BZ_EXTERN], [__attribute__((__visibility__("default")))], [To make symbol visible])
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|
+ fi
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+ fi
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+ AC_SUBST([CFLAG_VISIBILITY])
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|
+ AC_SUBST([HAVE_VISIBILITY])
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+ AC_DEFINE_UNQUOTED([HAVE_VISIBILITY], [$HAVE_VISIBILITY],
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+ [Define to 1 or 0, depending whether the compiler supports simple visibility declarations.])
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+])
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--- bzlib.h.orig
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+++ bzlib.h
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|
@@ -91,9 +91,11 @@ typedef
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# endif
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#else
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# define BZ_API(func) func
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-# define BZ_EXTERN extern
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#endif
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|
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+#ifndef BZ_EXTERN
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+#define BZ_EXTERN extern
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+#endif
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/*-- Core (low-level) library functions --*/
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|