62 lines
1.8 KiB
Text
62 lines
1.8 KiB
Text
# 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_GNU],
|
|
[AC_CACHE_CHECK(whether we are using GNU C, ac_cv_prog_gcc,
|
|
[dnl The semicolon is to pacify NeXT's syntax-checking cpp.
|
|
cat > conftest.c <<EOF
|
|
#ifdef __GNUC__
|
|
yes;
|
|
#endif
|
|
EOF
|
|
if AC_TRY_COMMAND(${CC-cc} -E conftest.c) | egrep yes >/dev/null 2>&1; then
|
|
ac_cv_prog_gcc=yes
|
|
else
|
|
ac_cv_prog_gcc=no
|
|
fi])])
|
|
|
|
AC_DEFUN([LIB_AM_PROG_AS],
|
|
[# By default we simply use the C compiler to build assembly code.
|
|
AC_REQUIRE([LIB_AC_PROG_CC])
|
|
test "${CCAS+set}" = set || CCAS=$CC
|
|
test "${CCASFLAGS+set}" = set || CCASFLAGS=$CFLAGS
|
|
AC_ARG_VAR([CCAS], [assembler compiler command (defaults to CC)])
|
|
AC_ARG_VAR([CCASFLAGS], [assembler compiler flags (defaults to CFLAGS)])
|
|
])
|
|
|
|
AC_DEFUN([LIB_AC_PROG_CC],
|
|
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
|
|
AC_CHECK_PROG(CC, gcc, gcc)
|
|
_AM_DEPENDENCIES(CC)
|
|
if test -z "$CC"; then
|
|
AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
|
|
test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
|
|
fi
|
|
|
|
LIB_AC_PROG_CC_GNU
|
|
|
|
if test $ac_cv_prog_gcc = yes; then
|
|
GCC=yes
|
|
dnl Check whether -g works, even if CFLAGS is set, in case the package
|
|
dnl plays around with CFLAGS (such as to build both debugging and
|
|
dnl normal versions of a library), tasteless as that idea is.
|
|
ac_test_CFLAGS="${CFLAGS+set}"
|
|
ac_save_CFLAGS="$CFLAGS"
|
|
CFLAGS=
|
|
_AC_PROG_CC_G
|
|
if test "$ac_test_CFLAGS" = set; then
|
|
CFLAGS="$ac_save_CFLAGS"
|
|
elif test $ac_cv_prog_cc_g = yes; then
|
|
CFLAGS="-g -O2"
|
|
else
|
|
CFLAGS="-O2"
|
|
fi
|
|
else
|
|
GCC=
|
|
test "${CFLAGS+set}" = set || CFLAGS="-g"
|
|
fi
|
|
])
|
|
|