From fd855758cccf8c355293bedda82a7ddff32d7ddc Mon Sep 17 00:00:00 2001
From: comex <comexk@gmail.com>
Date: Tue, 2 Jun 2015 18:00:50 -0400
Subject: [PATCH] Explicitly specify .pc names, since the previous guess in
 CheckLib.cmake wasn't always right.

This fixes detection of at least libenet via pkg-config, and I think
libpng via pkg-config pulseaudio via direct detection.

Also remove the NOT APPLE from the shared libenet check, because there's
no reason for it.
---
 CMakeLists.txt            | 32 ++++++++++++++++----------------
 CMakeTests/CheckLib.cmake |  5 ++---
 2 files changed, 18 insertions(+), 19 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e98c445f53..ad2e7ece27 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -389,7 +389,7 @@ if(NOT ANDROID)
 		message("ALSA NOT found, disabling ALSA sound backend")
 	endif(ALSA_FOUND)
 
-	check_lib(AO ao QUIET)
+	check_lib(AO ao ao QUIET)
 	if(AO_FOUND)
 		add_definitions(-DHAVE_AO=1)
 		message("ao found, enabling ao sound backend")
@@ -398,7 +398,7 @@ if(NOT ANDROID)
 		message("ao NOT found, disabling ao sound backend")
 	endif(AO_FOUND)
 
-	check_lib(BLUEZ bluez QUIET)
+	check_lib(BLUEZ bluez bluez QUIET)
 	if(BLUEZ_FOUND)
 		add_definitions(-DHAVE_BLUEZ=1)
 		message("bluez found, enabling bluetooth support")
@@ -407,7 +407,7 @@ if(NOT ANDROID)
 		message("bluez NOT found, disabling bluetooth support")
 	endif(BLUEZ_FOUND)
 
-	check_lib(PULSEAUDIO libpulse QUIET)
+	check_lib(PULSEAUDIO libpulse pulse QUIET)
 	if(PULSEAUDIO_FOUND)
 		add_definitions(-DHAVE_PULSEAUDIO=1)
 		message("PulseAudio found, enabling PulseAudio sound backend")
@@ -461,7 +461,7 @@ if(NOT ANDROID)
 	endif()
 
 	if(USE_X11)
-		check_lib(XRANDR Xrandr)
+		check_lib(XRANDR xrandr Xrandr)
 		if(XRANDR_FOUND)
 			add_definitions(-DHAVE_XRANDR=1)
 		else()
@@ -501,8 +501,8 @@ if(NOT ANDROID)
 	endif(PORTAUDIO)
 
 	if(OPROFILING)
-		check_lib(OPROFILE opagent opagent.h)
-		check_lib(BFD bfd bfd.h)
+		check_lib(OPROFILE "(no .pc for opagent)" opagent opagent.h)
+		check_lib(BFD "(no .pc for bfd)" bfd bfd.h)
 		if(OPROFILE_FOUND AND BFD_FOUND)
 			message("oprofile found, enabling profiling support")
 			add_definitions(-DUSE_OPROFILE=1)
@@ -535,11 +535,11 @@ include_directories(Source/Core)
 add_subdirectory(Externals/Bochs_disasm)
 include_directories(Externals/Bochs_disasm)
 
-if(NOT APPLE AND NOT ANDROID)
-        check_lib(ENET enet enet/enet.h QUIET)
+if(NOT ANDROID)
+	check_lib(ENET libenet enet enet/enet.h QUIET)
 endif()
 if (ENET_FOUND)
-        message("Using shared enet")
+	message("Using shared enet")
 else()
 	message("Using static enet from Externals")
 	include_directories(Externals/enet/include)
@@ -570,7 +570,7 @@ else(ZLIB_FOUND)
 endif(ZLIB_FOUND)
 
 if(NOT APPLE AND NOT ANDROID)
-	check_lib(LZO lzo2 lzo/lzo1x.h QUIET)
+	check_lib(LZO "(no .pc for lzo2)" lzo2 lzo/lzo1x.h QUIET)
 endif()
 if(LZO_FOUND)
 	message("Using shared lzo")
@@ -583,7 +583,7 @@ endif()
 list(APPEND LIBS ${LZO})
 
 if(NOT APPLE AND NOT ANDROID)
-	check_lib(PNG png png.h QUIET)
+	check_lib(PNG libpng png png.h QUIET)
 endif()
 if (PNG_FOUND)
 	message("Using shared libpng")
@@ -596,7 +596,7 @@ endif()
 
 if(OPENAL_FOUND)
 	if(NOT APPLE)
-		check_lib(SOUNDTOUCH SoundTouch soundtouch/SoundTouch.h QUIET)
+		check_lib(SOUNDTOUCH soundtouch SoundTouch soundtouch/SoundTouch.h QUIET)
 	endif()
 	if (SOUNDTOUCH_FOUND)
 		message("Using shared soundtouch")
@@ -681,7 +681,7 @@ else()
 endif()
 
 if(NOT APPLE AND NOT ANDROID)
-	check_lib(SOIL SOIL SOIL/SOIL.h QUIET)
+	check_lib(SOIL "(no .pc for SOIL)" SOIL SOIL/SOIL.h QUIET)
 endif()
 if(SOIL_FOUND)
 	message("Using shared SOIL")
@@ -740,7 +740,7 @@ if(NOT DISABLE_WX AND NOT ANDROID)
 			ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)
 		if(${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}.${CMAKE_PATCH_VERSION}
 				VERSION_EQUAL 2.8.2 OR "${DIST_NAME}" STREQUAL "natty")
-			check_lib(GTK2 gtk+-2.0 gtk.h REQUIRED)
+			check_lib(GTK2 gtk+-2.0 gtk+-2.0 gtk.h REQUIRED)
 		else()
 			include(FindGTK2)
 			if(GTK2_FOUND)
@@ -766,8 +766,8 @@ if(NOT DISABLE_WX AND NOT ANDROID)
 			add_definitions(-D__WXGTK__)
 
 			# Check for required libs
-			check_lib(GTHREAD2 gthread-2.0 glib/gthread.h REQUIRED)
-			check_lib(PANGOCAIRO pangocairo pango/pangocairo.h REQUIRED)
+			check_lib(GTHREAD2 gthread-2.0 gthread-2.0 glib/gthread.h REQUIRED)
+			check_lib(PANGOCAIRO pangocairo pangocairo pango/pangocairo.h REQUIRED)
 		elseif(WIN32)
 			add_definitions(-D__WXMSW__)
 		else()
diff --git a/CMakeTests/CheckLib.cmake b/CMakeTests/CheckLib.cmake
index aa8b95b047..caa0d621cd 100644
--- a/CMakeTests/CheckLib.cmake
+++ b/CMakeTests/CheckLib.cmake
@@ -6,7 +6,7 @@ macro(_internal_message msg)
 	endif()
 endmacro()
 
-macro(check_lib var lib)
+macro(check_lib var pc lib)
 	set(_is_required 0)
 	set(_is_quiet 0)
 	set(_arg_list ${ARGN})
@@ -22,8 +22,7 @@ macro(check_lib var lib)
 	endforeach()
 
 	if(PKG_CONFIG_FOUND AND NOT ${var}_FOUND)
-		string(TOLOWER ${lib} lower_lib)
-		pkg_search_module(${var} QUIET ${lower_lib})
+		pkg_search_module(${var} QUIET ${pc})
 	endif()
 
 	if(${var}_FOUND)