62 lines
1.9 KiB
Diff
62 lines
1.9 KiB
Diff
Note that GCC 4.0 will optimize ceil (constant), we therefore
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have to make the argument non-constant.
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================================================================================
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---
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configure.ac.footer | 20 ++++++++++++++++++++
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src/Makefile.in | 3 ++-
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2 files changed, 22 insertions(+), 1 deletion(-)
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Index: configure.ac.footer
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===================================================================
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--- configure.ac.footer.orig 2012-10-26 23:21:38.000000000 +0200
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+++ configure.ac.footer 2013-04-16 12:21:01.350791832 +0200
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@@ -112,6 +112,25 @@ fi
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AC_CHECK_FUNCS(vsyslog syslog)
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AC_FUNC_ALLOCA
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+AC_MSG_CHECKING(for ceil)
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+AC_TRY_LINK([#define __NO_MATH_INLINES 1
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+ double d;],
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+ [d = ceil(1.0*d);],
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+ SYNLDFLAGS=""
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+ AC_MSG_RESULT(yes),
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+ SYNLDFLAGS=-lm
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+ AC_MSG_RESULT(no))
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+
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+if test "$SYNLDFLAGS" = "-lm" ; then
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+ SAVE_LIBS="$LIBS"
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+ AC_CHECK_LIB(m,
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+ ceil,
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+ ,
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+ echo "libmath.so is needed due the ceil function"
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+ exit 1)
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+ LIBS="$SAVE_LIBS"
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+fi
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+
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case $with_curses in
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No|no|N|n) SHARED_LIBS=-lc ;;
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*)
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@@ -142,6 +161,7 @@ AC_SUBST(ELISP)
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AC_SUBST(SHLIB)
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AC_SUBST(PICFLAGS)
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AC_SUBST(SOLDFLAGS)
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+AC_SUBST(SYNLDFLAGS)
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AC_SUBST(LIBGPM_A)
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AC_SUBST(CURSES_OBJS)
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AC_SUBST(SHARED_LIBS)
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Index: src/Makefile.in
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===================================================================
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--- src/Makefile.in.orig 2013-04-16 12:18:43.719054511 +0200
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+++ src/Makefile.in 2013-04-16 12:18:43.762053491 +0200
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@@ -166,7 +166,8 @@ lib/libgpm.a: $(LOBJ)
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lib/libgpm.so.@abi_full@: $(PICS)
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$(CC) @SOLDFLAGS@libgpm.so.@abi_lev@ \
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- @LDFLAGS@ $(LDFLAGS) -o lib/libgpm.so.@abi_full@ $^ @LIBS@ @SHARED_LIBS@ $(LIBS)
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+ @LDFLAGS@ $(LDFLAGS) -o lib/libgpm.so.@abi_full@ $^ @LIBS@ @SHARED_LIBS@ @SYNLDFLAGS@ $(LIBS)
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+
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lib/libgpm.so.@abi_lev@: lib/libgpm.so.@abi_full@
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$(LN_S) -f libgpm.so.@abi_full@ lib/libgpm.so.@abi_lev@
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# unneeded, isn't it?
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