In commit f91e4863bc1382 we fixed an issue where LZ4_LIBS could be
overwritten in some situations. But on systems where lz4 is installed on
the system but is lacking pkg-config information, the linker will not know
about the lz4 library when completing the build.
This fixes the issue by explicitly setting LZ4_LIBS to contain -llz4
if pkg-config test was run and failed verifying the installed lz4 version
number. This also ensures that LZ4_LIBS will not be overwritten if it
has been provided on the ./configure command line.
Signed-off-by: David Sommerseth <dav...@openvpn.net>
---
configure.ac | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 394f5b09..6f59baef 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1093,7 +1093,9 @@ if test "$enable_lz4" = "yes" && test "$enable_comp_stub"
= "no"; then
PKG_CHECK_MODULES([LZ4],
[liblz4 >= 1.7.1 liblz4 < 100],
[have_lz4="yes"],
- [] # If this fails, we will do another test next
+ [LZ4_LIBS="-llz4"] # If this fails, we will do
another test next.
+ # We also add set LZ4_LIBS
otherwise the
+ # linker will not know about the
lz4 library
)
fi
--
2.13.5
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