Have the llvm configure process look for clang, then llvm-gcc, and then gcc
on all platforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139934 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index f3e94e8..7097a42 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -967,8 +967,8 @@
dnl Check for compilation tools
AC_PROG_CPP
-AC_PROG_CC(gcc)
-AC_PROG_CXX(g++)
+AC_PROG_CC(clang llvm-gcc gcc)
+AC_PROG_CXX(clang++ llvm-g++ g++)
AC_PROG_NM
AC_SUBST(NM)
diff --git a/configure b/configure
index e049b5b..18b7d6d 100755
--- a/configure
+++ b/configure
@@ -5817,7 +5817,7 @@
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
if test -n "$ac_tool_prefix"; then
- for ac_prog in gcc
+ for ac_prog in clang llvm-gcc gcc
do
# Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
@@ -5861,7 +5861,7 @@
fi
if test -z "$CC"; then
ac_ct_CC=$CC
- for ac_prog in gcc
+ for ac_prog in clang llvm-gcc gcc
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
@@ -6386,7 +6386,7 @@
CXX=$CCC
else
if test -n "$ac_tool_prefix"; then
- for ac_prog in g++
+ for ac_prog in clang++ llvm-g++ g++
do
# Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
@@ -6430,7 +6430,7 @@
fi
if test -z "$CXX"; then
ac_ct_CXX=$CXX
- for ac_prog in g++
+ for ac_prog in clang++ llvm-g++ g++
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
