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authorzack <zack@138bc75d-0d04-0410-961f-82ee72b054a4>2000-11-22 08:32:26 +0000
committerzack <zack@138bc75d-0d04-0410-961f-82ee72b054a4>2000-11-22 08:32:26 +0000
commitec25516353caa85f02127114006b85c8d3860c54 (patch)
tree2a1d2ae9f91d97732b595daf55f5397c013d1d7b /libiberty/aclocal.m4
parent7534b8df903c3a7ad66e497e2de2d64363220124 (diff)
downloadgcc-ec25516353caa85f02127114006b85c8d3860c54.tar.gz
gcc:
* Makefile.in, config.gcc, configure.in: Expunge remaining traces of facility for running MD files through C preprocessor. libiberty: * aclocal.m4 (LIB_AC_PROG_CC): Moved here from configure.in. (AC_DEFINE_NOAUTOHEADER): New - work around bug in autoheader. * configure.in: Call AC_C_INLINE and AC_C_CONST. Use three argument form of AC_DEFINE in dummy definitions block. Use AC_DEFINE_NOAUTOHEADER for real definitions of things defined in dummy block. Preload cache variables instead of bypassing tests, where possible. * acconfig.h: Removed. * xmalloc.c (xmalloc_failed): New function, does error reporting on failed allocation. (xmalloc, xcalloc, xrealloc): Use it. * libiberty.h: Move #includes to top. Prototype xmalloc_failed. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@37650 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libiberty/aclocal.m4')
-rw-r--r--libiberty/aclocal.m451
1 files changed, 51 insertions, 0 deletions
diff --git a/libiberty/aclocal.m4 b/libiberty/aclocal.m4
index b6c611e132d..c5628352773 100644
--- a/libiberty/aclocal.m4
+++ b/libiberty/aclocal.m4
@@ -83,3 +83,54 @@ then AC_DEFINE(NEED_DECLARATION_ERRNO, 1,
[Define if errno must be declared even when <errno.h> is included.])
fi
])
+
+# FIXME: We temporarily define our own version of AC_PROG_CC. This is
+# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
+# are probably using a cross compiler, which will not be able to fully
+# link an executable. This should really be fixed in autoconf
+# itself.
+
+AC_DEFUN(LIB_AC_PROG_CC,
+[AC_BEFORE([$0], [AC_PROG_CPP])dnl
+AC_PROVIDE([AC_PROG_CC])
+AC_CHECK_PROG(CC, gcc, gcc)
+if test -z "$CC"; then
+ AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
+ test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
+fi
+
+AC_PROG_CC_GNU
+
+if test $ac_cv_prog_gcc = yes; then
+ GCC=yes
+ ac_libiberty_warn_cflags='-W -Wall -Wtraditional -pedantic'
+dnl Check whether -g works, even if CFLAGS is set, in case the package
+dnl plays around with CFLAGS (such as to build both debugging and
+dnl normal versions of a library), tasteless as that idea is.
+ ac_test_CFLAGS="${CFLAGS+set}"
+ ac_save_CFLAGS="$CFLAGS"
+ CFLAGS=
+ AC_PROG_CC_G
+ if test "$ac_test_CFLAGS" = set; then
+ CFLAGS="$ac_save_CFLAGS"
+ elif test $ac_cv_prog_cc_g = yes; then
+ CFLAGS="-g -O2"
+ else
+ CFLAGS="-O2"
+ fi
+else
+ GCC=
+ ac_libiberty_warn_cflags=
+ test "${CFLAGS+set}" = set || CFLAGS="-g"
+fi
+AC_SUBST(ac_libiberty_warn_cflags)
+])
+
+# Work around a bug in autoheader. This can go away when we switch to
+# autoconf >2.50. The use of define instead of AC_DEFUN is
+# deliberate.
+define(AC_DEFINE_NOAUTOHEADER,
+[cat >> confdefs.h <<\EOF
+[#define] $1 ifelse($#, 2, [$2], $#, 3, [$2], 1)
+EOF
+])