From 613a4e3f6d9c52251e1449c656ea0a85b424d001 Mon Sep 17 00:00:00 2001 From: Måns Rullgård Date: Thu, 2 Sep 2010 21:41:07 +0000 Subject: Detect llvm-gcc and set appropriate flags Originally committed as revision 25028 to svn://svn.ffmpeg.org/ffmpeg/trunk --- configure | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'configure') diff --git a/configure b/configure index f63bbbc17f..2f9c9b6e22 100755 --- a/configure +++ b/configure @@ -1799,7 +1799,16 @@ filter_cflags=echo filter_cppflags=echo filter_asflags=echo -if $cc -v 2>&1 | grep -qi ^gcc; then +if $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then + cc_type=llvm_gcc + cc_version=__VERSION__ + gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)') + cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver" + CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@' + AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@' + speed_cflags='-O3' + size_cflags='-Os' +elif $cc -v 2>&1 | grep -qi ^gcc; then cc_type=gcc cc_version=__VERSION__ gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)') @@ -1969,7 +1978,7 @@ add_asflags $extra_cflags if test -n "$sysroot"; then case "$cc_type" in - gcc) + gcc|llvm_gcc) add_cppflags --sysroot="$sysroot" add_ldflags --sysroot="$sysroot" ;; @@ -1988,7 +1997,7 @@ if test "$cpu" = host; then enabled cross_compile && die "--cpu=host makes no sense when cross-compiling." case "$cc_type" in - gcc) + gcc|llvm_gcc) check_native(){ $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return sed -n "/$1=/{ @@ -2876,6 +2885,8 @@ elif enabled gcc; then check_cflags -fno-tree-vectorize check_cflags -Werror=implicit-function-declaration check_cflags -Werror=missing-prototypes +elif enabled llvm_gcc; then + check_cflags -mllvm -stack-alignment=16 elif enabled clang; then check_cflags -mllvm -stack-alignment=16 check_cflags -Qunused-arguments -- cgit v1.2.3