From a025c46969b76a10ce1618df4dbb11a09563c413 Mon Sep 17 00:00:00 2001
From: Lars Wendler <polynomial-c@gentoo.org>
Date: Wed, 20 Nov 2019 16:41:18 +0100
Subject: [PATCH] Revert "In pkg-config File, Derive Lib and Include Dir from
 Prefix at Use-Time"

This reverts commit 74bd76c3ffb3837a3fefc055edbc347620447236.

This breaks systems that use lib32 and/or lib64 instead of lib
See https://github.com/facebook/zstd/issues/1900

Signed-off-by: Lars Wendler <polynomial-c@gentoo.org>
---
 build/cmake/lib/CMakeLists.txt | 3 ++-
 lib/Makefile                   | 2 ++
 lib/libzstd.pc.in              | 5 ++---
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/build/cmake/lib/CMakeLists.txt b/build/cmake/lib/CMakeLists.txt
index 7adca875..77b389ca 100644
--- a/build/cmake/lib/CMakeLists.txt
+++ b/build/cmake/lib/CMakeLists.txt
@@ -134,10 +134,11 @@ if (UNIX)
     # pkg-config
     set(PREFIX "${CMAKE_INSTALL_PREFIX}")
     set(LIBDIR "${CMAKE_INSTALL_FULL_LIBDIR}")
+    set(INCLUDEDIR "${CMAKE_INSTALL_FULL_INCLUDEDIR}")
     set(VERSION "${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}")
     add_custom_target(libzstd.pc ALL
             ${CMAKE_COMMAND} -DIN="${LIBRARY_DIR}/libzstd.pc.in" -DOUT="libzstd.pc"
-            -DPREFIX="${PREFIX}" -DVERSION="${VERSION}"
+            -DPREFIX="${PREFIX}" -DLIBDIR="${LIBDIR}" -DINCLUDEDIR="${INCLUDEDIR}" -DVERSION="${VERSION}"
             -P "${CMAKE_CURRENT_SOURCE_DIR}/pkgconfig.cmake"
             COMMENT "Creating pkg-config file")
 
diff --git a/lib/Makefile b/lib/Makefile
index fd1710cf..97375ad2 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -244,6 +244,8 @@ libzstd.pc:
 libzstd.pc: libzstd.pc.in
 	@echo creating pkgconfig
 	@sed -e 's|@PREFIX@|$(PREFIX)|' \
+             -e 's|@LIBDIR@|$(LIBDIR)|' \
+             -e 's|@INCLUDEDIR@|$(INCLUDEDIR)|' \
              -e 's|@VERSION@|$(VERSION)|' \
              $< >$@
 
diff --git a/lib/libzstd.pc.in b/lib/libzstd.pc.in
index e7880be4..1d07b91f 100644
--- a/lib/libzstd.pc.in
+++ b/lib/libzstd.pc.in
@@ -3,9 +3,8 @@
 #   BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
 
 prefix=@PREFIX@
-exec_prefix=${prefix}
-includedir=${prefix}/include
-libdir=${exec_prefix}/lib
+libdir=@LIBDIR@
+includedir=@INCLUDEDIR@
 
 Name: zstd
 Description: fast lossless compression algorithm library
-- 
2.24.0