From b4e1ffcdbfe8dc98036a16022cbcc422385c1834 Mon Sep 17 00:00:00 2001
From: DRC <information@virtualgl.org>
Date: Tue, 23 Aug 2022 10:07:10 -0500
Subject: [PATCH] Build: Find Xfont2/fontenc/Pixman using pkg-config

... when TVNC_SYSTEMX11=1.  Referring to #339, we can't assume that
these libraries will share include/library paths with libX11.  This
commit reverts e9cb8665dc3822b33dc0ffc5571fce5a759e7cb9.

Rebased on 3.0.1 by Maxim Cournoyer <maxim.cournoyer@gmail.com>

diff --git a/unix/Xvnc/CMakeLists.txt b/unix/Xvnc/CMakeLists.txt
index 064feda..293f794 100644
--- a/unix/Xvnc/CMakeLists.txt
+++ b/unix/Xvnc/CMakeLists.txt
@@ -94,11 +94,13 @@ if(NOT TVNC_SYSTEMX11)
 endif()
 
 if(TVNC_SYSTEMX11)
+	include(FindPkgConfig)
+	pkg_check_modules(X11_Xfont2 REQUIRED xfont2)
+	pkg_check_modules(X11_Fontenc REQUIRED fontenc)
+	pkg_check_modules(X11_Pixman REQUIRED pixman-1)
 	include_directories(${X11_X11_INCLUDE_PATH} ${X11_Xau_INCLUDE_PATH}
-		${X11_Xdmcp_INCLUDE_PATH} ${X11_Xkbfile_INCLUDE_PATH})
-	string(REGEX REPLACE "X11" "Xfont2" X11_Xfont2_LIB ${X11_X11_LIB})
-	string(REGEX REPLACE "X11" "fontenc" X11_Fontenc_LIB ${X11_X11_LIB})
-	string(REGEX REPLACE "X11" "pixman-1" X11_Pixman_LIB ${X11_X11_LIB})
+		${X11_Xdmcp_INCLUDE_PATH} ${X11_Xkbfile_INCLUDE_PATH}
+		${X11_Xfont2_INCLUDEDIR} ${X11_Pixman_INCLUDEDIR}/pixman-1)
 else()
 	include_directories(${CMAKE_CURRENT_BINARY_DIR}/X_include)
 	set(X11_Xau_LIB Xau)
diff --git a/unix/Xvnc/programs/Xserver/CMakeLists.txt b/unix/Xvnc/programs/Xserver/CMakeLists.txt
index 8c05d43..f8d8f76 100644
--- a/unix/Xvnc/programs/Xserver/CMakeLists.txt
+++ b/unix/Xvnc/programs/Xserver/CMakeLists.txt
@@ -182,9 +182,10 @@ if(HAVE_MONOTONIC_CLOCK)
 endif()
 target_link_libraries(Xvnc dix mi vnc fb Xi composite mi damage damageext randr
 	record render os present Xext-server sync xfixes xkb ${X11_Xau_LIB}
-	${X11_Xdmcp_LIB} ${X11_Xfont2_LIB} ${X11_Fontenc_LIB} ${FREETYPE_LIBRARIES}
-	${X11_Pixman_LIB} sha1 ${TJPEG_LIBRARY} ${ZLIB_LIBRARIES} ${BZIP2_LIBRARIES}
-	vncauth m pthread ${PAM_LIB} ${EXTRA_LIB})
+	${X11_Xdmcp_LIB} ${X11_Xfont2_LDFLAGS} ${X11_Fontenc_LDFLAGS}
+	${FREETYPE_LIBRARIES} ${X11_Pixman_LDFLAGS} sha1 ${TJPEG_LIBRARY}
+	${ZLIB_LIBRARIES} ${BZIP2_LIBRARIES} vncauth m pthread ${PAM_LIB}
+	${EXTRA_LIB})
 if(APPLE OR CMAKE_SYSTEM_NAME MATCHES "(OpenBSD|FreeBSD|NetBSD|DragonFly)")
 	find_library(ICONV_LIBRARIES NAMES iconv)
 	target_link_libraries(Xvnc ${ICONV_LIBRARIES})