diff options
Diffstat (limited to 'bfd/aclocal.m4')
| -rw-r--r-- | bfd/aclocal.m4 | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/bfd/aclocal.m4 b/bfd/aclocal.m4 new file mode 100644 index 0000000..dabc963 --- /dev/null +++ b/bfd/aclocal.m4 @@ -0,0 +1,45 @@ +dnl +dnl This ugly hack is needed because the Cygnus configure script won't +dnl tell us what CC is going to be, and "cc" isn't always right. (The +dnl top-level Makefile will always override anything we choose here, so +dnl the usual gcc/cc selection is useless.) +dnl +dnl It knows where it is in the tree; don't try using it elsewhere. +dnl +undefine([AC_PROG_CC])dnl +AC_DEFUN(AC_PROG_CC, +[AC_BEFORE([$0], [AC_PROG_CPP])dnl +dnl +dnl The ugly bit... +dnl +AC_MSG_CHECKING([for CC]) +dnl Don't bother with cache. +test -z "$CC" && CC=`egrep '^CC *=' ../Makefile | tail -1 | sed 's/^CC *= *//'` +test -z "$CC" && CC=cc +AC_MSG_RESULT(setting CC to $CC) +AC_SUBST(CC) +dnl +dnl Find out if we are using GNU C, under whatever name. +dnl The semicolon is to pacify NeXT's syntax-checking cpp. +cat > conftest.c <<EOF +#ifdef __GNUC__ + yes; +#endif +EOF +if ${CC-cc} -E conftest.c 2>&AC_FD_CC | egrep yes >/dev/null 2>&1; then + GCC=yes + if test "${CFLAGS+set}" != set; then + echo 'void f(){}' > conftest.c + if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then + CFLAGS="-g -O" + else + CFLAGS="-O" + fi + fi +else + GCC= + test "${CFLAGS+set}" = set || CFLAGS="-g" +fi +rm -f conftest* +])dnl +dnl |