[Mesa-dev] [PATCH] configure: Check llvm-config --shared-mode

[Michel Dänzer]

From: Michel Dänzer <michel.daenzer at amd.com>

https://bugs.llvm.org/show_bug.cgi?id=6823 still affects current LLVM.
llvm-config --libs only reports the single shared library if LLVM was
built with -DLLVM_LINK_LLVM_DYLIB=ON. llvm-config --shared-mode reports
"shared" in that case, "static" otherwise (even if LLVM was built with
-DLLVM_BUILD_LLVM_DYLIB=ON).

Fixes: 3d8da1f678e1 ("configure: Trust LLVM >= 4.0 llvm-config --libs
                      for shared libraries")
Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 3fe47c7bbc..de15ac2fca 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2624,7 +2624,7 @@ if test "x$enable_llvm" = xyes; then
     LLVM_LIBS="`$LLVM_CONFIG --libs ${LLVM_COMPONENTS}`"
 
     if test "x$enable_llvm_shared_libs" = xyes; then
-        if test $LLVM_VERSION_MAJOR -lt 4; then
+        if test `$LLVM_CONFIG --shared-mode` = static; then
             dnl llvm-config may not give the right answer when llvm is a built as a
             dnl single shared library, so we must work the library name out for
             dnl ourselves.
-- 
2.14.1