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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [libgloss/] [acinclude.m4] - Rev 455
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# 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 ])
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