tools: mkimage: use pkg-config to discover libcrypto linker flags

LibreSSL's libcrypto.so has an indirect dependency to librt for clock_gettime()
on Linux.

Use pkg-config to portably discover the required linker flags.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

diff --git a/tools/mkimage/Makefile b/tools/mkimage/Makefile
index 87aaad4f2e0b2bfd3e98f2123ca4a0f3ab0d3a00..4aa822d606a08075e71b1c54dfe1f8076c5a9556 100644 (file)
--- a/tools/mkimage/Makefile
+++ b/tools/mkimage/Makefile
@@ -31,8 +31,8 @@ define Host/Prepare
 endef
 
 define Host/Compile
-       $(MAKE) -C $(HOST_BUILD_DIR) defconfig   HOSTCFLAGS="$(HOST_CPPFLAGS) $(HOST_CFLAGS)" HOSTLDFLAGS="$(HOST_LDFLAGS)"
-       $(MAKE) -C $(HOST_BUILD_DIR) tools-only  HOSTCFLAGS="$(HOST_CPPFLAGS) $(HOST_CFLAGS)" HOSTLDFLAGS="$(HOST_LDFLAGS)"
+       $(MAKE) -C $(HOST_BUILD_DIR) defconfig   HOSTCFLAGS="$(HOST_CPPFLAGS) $(HOST_CFLAGS)" HOSTLDFLAGS="$(HOST_LDFLAGS) $$$$(pkg-config --static --libs libcrypto)"
+       $(MAKE) -C $(HOST_BUILD_DIR) tools-only  HOSTCFLAGS="$(HOST_CPPFLAGS) $(HOST_CFLAGS)" HOSTLDFLAGS="$(HOST_LDFLAGS) $$$$(pkg-config --static --libs libcrypto)"
 endef
 
 define Host/Install