From e52783017eeb6093a8bac160d6125d658664eebb Mon Sep 17 00:00:00 2001
From: Matthew Barr <matthew.barr@intel.com>
Date: Wed, 27 Apr 2016 15:05:44 +1000
Subject: [PATCH] pkgconfig: Add Libs.private for static linking

---
 CMakeLists.txt | 8 ++++++++
 libhs.pc.in    | 1 +
 2 files changed, 9 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 10a7b359..7439f50b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -349,6 +349,14 @@ configure_file(${CMAKE_MODULE_PATH}/config.h.in ${PROJECT_BINARY_DIR}/config.h)
 configure_file(src/hs_version.h.in ${PROJECT_BINARY_DIR}/hs_version.h)
 
 if (NOT WIN32)
+    # expand out library names for pkgconfig static link info
+    foreach (LIB ${CMAKE_CXX_IMPLICIT_LINK_LIBRARIES})
+        # this is fragile, but protects us from toolchain specific files
+        if (NOT EXISTS ${LIB})
+            set(PRIVATE_LIBS "${PRIVATE_LIBS} -l${LIB}")
+        endif()
+    endforeach()
+
     configure_file(libhs.pc.in libhs.pc @ONLY) # only replace @ quoted vars
     install(FILES ${CMAKE_BINARY_DIR}/libhs.pc
             DESTINATION "${CMAKE_INSTALL_PREFIX}/lib/pkgconfig")
diff --git a/libhs.pc.in b/libhs.pc.in
index b67f9de6..e16460e8 100644
--- a/libhs.pc.in
+++ b/libhs.pc.in
@@ -7,4 +7,5 @@ Name: libhs
 Description: Intel(R) Hyperscan Library
 Version: @HS_VERSION@
 Libs: -L${libdir} -lhs
+Libs.private: @PRIVATE_LIBS@
 Cflags: -I${includedir}/hs