From 9f13cb31e82c0c2872eabe02d25c797fefc42f55 Mon Sep 17 00:00:00 2001
From: Piotr Szubiakowski <pszubiak@eso.org>
Date: Fri, 13 Aug 2021 21:07:31 +0000
Subject: [PATCH] Install pkg-config files in the correct location

Use `$(libdir)` while installing .pc files looks like a more generic
solution. For example, it will work for distributions like RHEL or
Fedora where .pc files are installed in `/usr/lib64/pkgconfig`.
---
 src/libcmd/local.mk   | 2 +-
 src/libexpr/local.mk  | 2 +-
 src/libmain/local.mk  | 2 +-
 src/libstore/local.mk | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/libcmd/local.mk b/src/libcmd/local.mk
index 431d8ec06..0a684468e 100644
--- a/src/libcmd/local.mk
+++ b/src/libcmd/local.mk
@@ -12,4 +12,4 @@ libcmd_LDFLAGS = -llowdown -pthread
 
 libcmd_LIBS = libstore libutil libexpr libmain libfetchers
 
-$(eval $(call install-file-in, $(d)/nix-cmd.pc, $(prefix)/lib/pkgconfig, 0644))
+$(eval $(call install-file-in, $(d)/nix-cmd.pc, $(libdir)/pkgconfig, 0644))
diff --git a/src/libexpr/local.mk b/src/libexpr/local.mk
index 17b83aafd..5ba11c619 100644
--- a/src/libexpr/local.mk
+++ b/src/libexpr/local.mk
@@ -35,7 +35,7 @@ $(d)/lexer-tab.cc $(d)/lexer-tab.hh: $(d)/lexer.l
 
 clean-files += $(d)/parser-tab.cc $(d)/parser-tab.hh $(d)/lexer-tab.cc $(d)/lexer-tab.hh
 
-$(eval $(call install-file-in, $(d)/nix-expr.pc, $(prefix)/lib/pkgconfig, 0644))
+$(eval $(call install-file-in, $(d)/nix-expr.pc, $(libdir)/pkgconfig, 0644))
 
 $(foreach i, $(wildcard src/libexpr/flake/*.hh), \
   $(eval $(call install-file-in, $(i), $(includedir)/nix/flake, 0644)))
diff --git a/src/libmain/local.mk b/src/libmain/local.mk
index a8eed6c65..f45d6e3ff 100644
--- a/src/libmain/local.mk
+++ b/src/libmain/local.mk
@@ -14,4 +14,4 @@ libmain_LIBS = libstore libutil
 
 libmain_ALLOW_UNDEFINED = 1
 
-$(eval $(call install-file-in, $(d)/nix-main.pc, $(prefix)/lib/pkgconfig, 0644))
+$(eval $(call install-file-in, $(d)/nix-main.pc, $(libdir)/pkgconfig, 0644))
diff --git a/src/libstore/local.mk b/src/libstore/local.mk
index 44316f542..b87cee8d5 100644
--- a/src/libstore/local.mk
+++ b/src/libstore/local.mk
@@ -60,7 +60,7 @@ $(d)/build.cc:
 
 clean-files += $(d)/schema.sql.gen.hh $(d)/ca-specific-schema.sql.gen.hh
 
-$(eval $(call install-file-in, $(d)/nix-store.pc, $(prefix)/lib/pkgconfig, 0644))
+$(eval $(call install-file-in, $(d)/nix-store.pc, $(libdir)/pkgconfig, 0644))
 
 $(foreach i, $(wildcard src/libstore/builtins/*.hh), \
   $(eval $(call install-file-in, $(i), $(includedir)/nix/builtins, 0644)))