[Qemu-devel] [PATCH v2] libtasn1: check if static library is present

[Qemu-devel] [PATCH v2] libtasn1: check if static library is present

[Laurent Vivier]

Some distros [1] don't ship systematically static libraries,
and pkg-config doesn't give us the information.

This is the case for libtasn1, so add a check in configure
to see if linker is able to find the library.

[1] https://fedoraproject.org/wiki/Archive:PackagingDrafts/StaticLibraryPolicy

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
v2: do not duplicate --static flag
    do not special-casing static case

 configure | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index f14454e..d5e3c91 100755
--- a/configure
+++ b/configure
@@ -2285,8 +2285,13 @@ tasn1=yes
 if $pkg_config --exists "libtasn1"; then
     tasn1_cflags=`$pkg_config --cflags libtasn1`
     tasn1_libs=`$pkg_config --libs libtasn1`
-    test_cflags="$test_cflags $tasn1_cflags"
-    test_libs="$test_libs $tasn1_libs"
+    # some distros (fedora) don't ship all static libraries
+    if compile_prog "$tasn1_cflags" "$tasn1_libs" ; then
+        test_cflags="$test_cflags $tasn1_cflags"
+        test_libs="$test_libs $tasn1_libs"
+    else
+        tasn1=no
+    fi
 else
     tasn1=no
 fi
-- 
2.4.3