171 lines
4.3 KiB
Plaintext
171 lines
4.3 KiB
Plaintext
--- config.h.in
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+++ config.h.in 2012-10-02 09:06:48.591006953 +0000
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@@ -674,6 +674,9 @@
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/* Define to 1 if you have the `z' library (-lz). */
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#undef HAVE_LIBZ
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+/* Define to 1 if you have libzio for opening compressed manuals */
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+#undef HAVE_ZIO
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+
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/* Define to 1 if you have the <linewrap.h> header file. */
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#undef HAVE_LINEWRAP_H
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--- configure.ac
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+++ configure.ac 2012-10-02 09:55:06.783914808 +0000
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@@ -98,6 +98,18 @@ AC_ARG_WITH([sections],
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sections="$withval"
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fi],
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[: ${sections=1 n l 8 3 2 5 4 9 6 7}])
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+AC_ARG_WITH([zio],
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+[AS_HELP_STRING([--with-zio=LIBRARY], [use zlib/libbz2 wrapper library LIBRARY (libzio)])],
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+ [if test -z "$withval" -o "$withval" = "yes"
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+ then
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+ zio=libzio
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+ elif test "$withval" = "no"
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+ then
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+ AC_MSG_ERROR(--with-zio requires an argument)
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+ else
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+ zio=$withval
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+ fi],
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+ [: ${zio=no}])
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AC_ARG_ENABLE([automatic-create],
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[AS_HELP_STRING([--enable-automatic-create], [allow man to create user databases on the fly])],
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[if test "$enableval" = "yes"
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@@ -375,6 +387,40 @@ AC_SUBST([unlzma])
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AC_SUBST([unxz])
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AC_SUBST([unlzip])
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MAN_COMPRESS_LIB([z], [gzopen])
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+dnl Check for zlib and libbz2 libraries to use this together
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+dnl with SuSE's libzio to open compressed info files.
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+dnl
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+if test "$zio" = "no" || test -n "$zio"
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+then
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+ AC_CHECK_HEADER(zio.h,[
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+ for lib in ${zio#lib} zio
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+ do
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+ AC_CHECK_LIB($lib, fzopen, [LIBS="-l$lib $LIBS"; am_cv_libzio=yes])
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+ done
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+ ])
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+ if test "$am_cv_libzio" = yes; then
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+ AC_DEFINE([COMP_SRC],[],[Define if you have compressors and want to support compressed cat files.])
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+ AC_DEFINE([HAVE_ZIO],[],[Define to 1 if you have libzio for opening compressed manuals])
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+ AC_CHECK_HEADER(zlib.h,[
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+ for lib in z gz
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+ do
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+ AC_CHECK_LIB($lib, gzopen, [LIBS="$LIBS -Wl,--no-as-needed -l$lib"; break])
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+ done
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+ ])
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+ AC_CHECK_HEADER(bzlib.h,[
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+ for lib in bz2 bzip2
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+ do
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+ AC_CHECK_LIB($lib, BZ2_bzopen, [LIBS="$LIBS -Wl,--no-as-needed -l$lib"; break])
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+ done
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+ ])
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+ AC_CHECK_HEADER(lzma.h, [
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+ for lib in lzma lzmadec
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+ do
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+ AC_CHECK_LIB($lib, lzmadec_open, [LIBS="$LIBS -Wl,--no-as-needed -l$lib"; break])
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+ done
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+ ])
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+ fi
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+fi
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dnl To add more decompressors just follow the scheme above.
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# Work out which manual page hierarchy scheme might be in use.
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--- lib/decompress.c
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+++ lib/decompress.c 2012-10-02 09:05:43.787007258 +0000
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@@ -36,6 +36,10 @@
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# include "zlib.h"
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#endif /* HAVE_LIBZ */
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+#ifdef HAVE_ZIO
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+# include "zio.h"
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+#endif /* HAVE_ZIO */
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+
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#include "manconfig.h"
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#include "comp_src.h"
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#include "pipeline.h"
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@@ -66,6 +70,32 @@ static void decompress_zlib (void *data
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#endif /* HAVE_LIBZ */
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+#ifdef HAVE_ZIO
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+
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+static void decompress_zio (void *data)
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+{
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+ const char *what = (const char*)data;
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+ FILE *file;
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+
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+ file = fdzopen(dup (fileno (stdin)), "r", what);
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+ if (!file)
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+ return;
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+
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+ for (;;) {
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+ char buffer[4096];
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+ int r = fread(buffer, sizeof(char), sizeof(buffer), file);
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+ if (r <= 0)
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+ break;
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+ if (fwrite (buffer, 1, (size_t) r, stdout) < (size_t) r)
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+ break;
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+ }
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+
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+ fclose(file);
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+ return;
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+}
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+
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+#endif /* HAVE_ZIO */
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+
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pipeline *decompress_open (const char *filename)
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{
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pipecmd *cmd;
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@@ -80,6 +110,37 @@ pipeline *decompress_open (const char *f
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if (stat (filename, &st) < 0 || S_ISDIR (st.st_mode))
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return NULL;
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+#ifdef HAVE_ZIO
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+ ext = strrchr (filename, '.');
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+ if (ext) {
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+ const char *opt;
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+ char *name;
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+
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+ if (STREQ (ext, ".gz"))
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+ opt = "g";
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+ else if (STREQ (ext, ".z"))
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+ opt = "z";
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+ else if (STREQ (ext, ".bz2"))
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+ opt = "b";
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+ else if (STREQ (ext, ".xz"))
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+ opt = "x";
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+ else if (STREQ (ext, ".lzma"))
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+ opt = "l";
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+ else if (STREQ (ext, ".Z"))
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+ opt = "Z";
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+ else
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+ goto nozio;
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+
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+ /* informational only; no shell quoting concerns */
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+ name = appendstr (NULL, "libzio < ", filename, NULL);
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+ cmd = pipecmd_new_function (name, &decompress_zio, NULL,
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+ opt);
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+ free (name);
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+ p = pipeline_new_commands (cmd, NULL);
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+ goto got_pipeline;
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+ }
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+#endif /* HAVE_ZIO */
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+
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#ifdef HAVE_LIBZ
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filename_len = strlen (filename);
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if (filename_len > 3 && STREQ (filename + filename_len - 3, ".gz")) {
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@@ -93,7 +154,11 @@ pipeline *decompress_open (const char *f
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}
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#endif /* HAVE_LIBZ */
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+#ifdef HAVE_ZIO
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+nozio:
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+#else
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ext = strrchr (filename, '.');
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+#endif /* HAVE_LIBZ */
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if (ext) {
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++ext;
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