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From 8cee09b59a8c1ff2ebfc8c46097825d2eafdc4dd Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Sat, 16 May 2015 17:32:13 +0200
Subject: [PATCH] Fix static linking problem with libgcrypt
When libgcrypt is used, it is linked with libgpg-error, so we should
also test that libgpg-error is available, and include -lgpg-error in
the LIBS variable.
This fixes build issues like:
CCLD xml
/home/thomas/projets/buildroot/output/host/usr/bfin-buildroot-uclinux-uclibc/sysroot/usr/lib/libexslt.a(crypto.o): In function `_exsltCryptoGcryptInit':
crypto.c:(.text+0x112): undefined reference to `_gcry_check_version'
/home/thomas/projets/buildroot/output/host/usr/bfin-buildroot-uclinux-uclibc/sysroot/usr/lib/libexslt.a(crypto.o): In function `_exsltCryptoRc4DecryptFunction':
crypto.c:(.text+0x316): undefined reference to `_gcry_cipher_open'
crypto.c:(.text+0x32a): undefined reference to `_gcry_strerror'
crypto.c:(.text+0x34c): undefined reference to `_gcry_cipher_setkey'
Which are caused by the AC_SEARCH_LIBS() test for libgcrypt to fail
due to -lgpg-error not been present in the LIBS variable.
Note that using PKG_CHECK_MODULES() would be a much much better
replacement than this complicated handling of static libraries, but
it's a much more significant effort.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
configure.ac | 1 +
1 file changed, 1 insertion(+)
diff --git a/configure.ac b/configure.ac
index 4db0129..e378996 100644
--- a/configure.ac
+++ b/configure.ac
@@ -125,6 +125,7 @@ AS_IF([test "x$STATIC_LIBS" != xno],
[AC_SEARCH_LIBS([libiconv_open], [iconv], [], [], "$USER_LIBS")], "$USER_LIBS")
AC_SEARCH_LIBS([clock_gettime], [rt], [], [], "$USER_LIBS")
AC_SEARCH_LIBS([deflate], [z], [], [], "$USER_LIBS")
+ AC_SEARCH_LIBS([gpg_strerror], [gpg-error], [], [], "$USER_LIBS")
AC_SEARCH_LIBS([gcry_cipher_encrypt], [gcrypt], [], [], "$USER_LIBS")
# Checks for inet libraries:
--
2.1.0
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