From a0e86c3c36f2326c5404bdfaf74eacc065f2c871 Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@debian.org>
Date: Mon, 11 Jun 2018 20:33:31 +0100
Subject: [PATCH] Make uses of pkg-config cross-compilation-friendly

Signed-off-by: Simon McVittie <smcv@debian.org>
---
 Makefile | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index f89bc50c..f51fe0e6 100755
--- a/Makefile
+++ b/Makefile
@@ -133,6 +133,10 @@ else
 COMPILER := unknown
 endif
 
+# Used to detect libraries. Override to foobar-linux-gnu-pkg-config when
+# cross-compiling.
+PKG_CONFIG ?= pkg-config
+
 # Disable CDA for SDL2
 ifeq ($(WITH_SDL2),yes)
 ifeq ($(WITH_CDA),yes)
@@ -254,8 +258,8 @@ endif # SDL2
 ifneq ($(YQ2_OSTYPE), Windows)
 ifneq ($(YQ2_OSTYPE), Darwin)
 ifeq ($(WITH_X11GAMMA),yes)
-X11CFLAGS := $(shell pkg-config x11 --cflags)
-X11CFLAGS += $(shell pkg-config xxf86vm --cflags)
+X11CFLAGS := $(shell $(PKG_CONFIG) x11 --cflags)
+X11CFLAGS += $(shell $(PKG_CONFIG) xxf86vm --cflags)
 endif
 endif
 endif
@@ -324,9 +328,9 @@ endif # Darwin
 ifneq ($(YQ2_OSTYPE), Windows)
 ifneq ($(YQ2_OSTYPE), Darwin)
 ifeq ($(WITH_X11GAMMA),yes)
-X11LDFLAGS := $(shell pkg-config x11 --libs)
-X11LDFLAGS += $(shell pkg-config xxf86vm --libs)
-X11LDFLAGS += $(shell pkg-config xrandr --libs)
+X11LDFLAGS := $(shell $(PKG_CONFIG) x11 --libs)
+X11LDFLAGS += $(shell $(PKG_CONFIG) xxf86vm --libs)
+X11LDFLAGS += $(shell $(PKG_CONFIG) xrandr --libs)
 endif
 endif
 endif