kmod编译找不到函数kmod_log

编译报错：

/usr/bin/ld: Warning: gc-sections option ignored
libkmod/.libs/libkmod-util.a(libkmod-util.o): In function `underscores':
/root/rpmbuild/BUILD/kmod-/libkmod/libkmod-util.c:: undefined reference to `kmod_log'
/root/rpmbuild/BUILD/kmod-/libkmod/libkmod-util.c:: undefined reference to `kmod_log'
/root/rpmbuild/BUILD/kmod-/libkmod/libkmod-util.c:: undefined reference to `kmod_log'
/root/rpmbuild/BUILD/kmod-/libkmod/libkmod-util.c:: undefined reference to `kmod_log'
collect2: ld returned  exit status
make[]: *** [tools/kmod] Error
make[]: *** Waiting for unfinished jobs....
mv -f tools/.deps/tools_kmod_nolib-kmod-depmod.Tpo tools/.deps/tools_kmod_nolib-kmod-depmod.Po
make[]: *** [all-recursive] Error
make: *** [all] Error
error: Bad exit status from /var/tmp/rpm-tmp.2gp1LL (%build)

解决办法，将kmod_log函数引出

patch:

libkmod/libkmod.c |  +++---
 files changed,  insertions(+),  deletions(-)

diff --git a/libkmod/libkmod.c b/libkmod/libkmod.c
index 36ca629..74fd9ef
--- a/libkmod/libkmod.c
+++ b/libkmod/libkmod.c
@@ -, +, @@ struct kmod_ctx {
unsigned long long indexes_stamp[_KMOD_INDEX_MODULES_SIZE];
};

-void kmod_log(const struct kmod_ctx *ctx,
-    int priority, const char *file, int line, const char *fn,
-    const char *format, ...)
+KMOD_EXPORT void kmod_log(const struct kmod_ctx *ctx,
+    int priority, const char *file, int line,
+    const char *fn, const char *format, ...)
{
va_list args;