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-rw-r--r--configure.ac33
1 files changed, 27 insertions, 6 deletions
diff --git a/configure.ac b/configure.ac
index 0fed26e1a01..1db5b2883bc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -533,15 +533,32 @@ AM_CONDITIONAL(HAVE_COMPAT_SYMLINKS, test "x$HAVE_COMPAT_SYMLINKS" = xyes)
dnl
dnl library names
dnl
+dnl Unfortunately we need to do a few things that libtool can't help us with,
+dnl so we need some knowledge of shared library filenames:
+dnl
+dnl LIB_EXT is the extension used when creating symlinks for alternate
+dnl filenames for a shared library which will be dynamically loaded
+dnl
+dnl IMP_LIB_EXT is the extension used when checking for the presence of a
+dnl the file for a shared library we wish to link with
+dnl
case "$host_os" in
darwin* )
- LIB_EXT='dylib' ;;
+ LIB_EXT='dylib'
+ IMP_LIB_EXT=$LIB_EXT
+ ;;
cygwin* )
- LIB_EXT='dll' ;;
+ LIB_EXT='dll'
+ IMP_LIB_EXT='dll.a'
+ ;;
aix* )
- LIB_EXT='a' ;;
+ LIB_EXT='a'
+ IMP_LIB_EXT=$LIB_EXT
+ ;;
* )
- LIB_EXT='so' ;;
+ LIB_EXT='so'
+ IMP_LIB_EXT=$LIB_EXT
+ ;;
esac
AC_SUBST([LIB_EXT])
@@ -2168,10 +2185,14 @@ if test "x$MESA_LLVM" != x0; then
LLVM_LIBS="`$LLVM_CONFIG --libs ${LLVM_COMPONENTS}`"
+ dnl llvm-config may not give the right answer when llvm is a built as a
+ dnl single shared library, so we must work the library name out for
+ dnl ourselves.
+ dnl (See https://llvm.org/bugs/show_bug.cgi?id=6823)
if test "x$enable_llvm_shared_libs" = xyes; then
dnl We can't use $LLVM_VERSION because it has 'svn' stripped out,
LLVM_SO_NAME=LLVM-`$LLVM_CONFIG --version`
- AS_IF([test -f "$LLVM_LIBDIR/lib$LLVM_SO_NAME.so"], [llvm_have_one_so=yes])
+ AS_IF([test -f "$LLVM_LIBDIR/lib$LLVM_SO_NAME.$IMP_LIB_EXT"], [llvm_have_one_so=yes])
if test "x$llvm_have_one_so" = xyes; then
dnl LLVM was built using auto*, so there is only one shared object.
@@ -2179,7 +2200,7 @@ if test "x$MESA_LLVM" != x0; then
else
dnl If LLVM was built with CMake, there will be one shared object per
dnl component.
- AS_IF([test ! -f "$LLVM_LIBDIR/libLLVMTarget.so"],
+ AS_IF([test ! -f "$LLVM_LIBDIR/libLLVMTarget.$IMP_LIB_EXT"],
[AC_MSG_ERROR([Could not find llvm shared libraries:
Please make sure you have built llvm with the --enable-shared option
and that your llvm libraries are installed in $LLVM_LIBDIR