3 files changed, 7 insertions, 5 deletions
diff --git a/test/postinstall/c_app/makefile.mak b/test/postinstall/c_app/makefile.mak
index 3e29d4b1..01d1c259 100644
--- a/test/postinstall/c_app/makefile.mak
+++ b/test/postinstall/c_app/makefile.mak
@@ -6,18 +6,18 @@ TESTS = \
   test_searchpath.sh \
   test_version.sh
 
-override CFLAGS += -g -Wall -Werror $(shell pkg-config proj --cflags)
+override CFLAGS += -g -Wall -Werror $(shell ${PKG_CONFIG} proj --cflags)
 
 ifeq ($(BUILD_MODE),static)
   UNAME_S := $(shell uname -s)
-  _ldflags := $(shell pkg-config proj --libs --static)
+  _ldflags := $(shell ${PKG_CONFIG} proj --libs --static)
   ifeq ($(UNAME_S),Linux)
     # force static linking to libproj
     _ldflags := $(shell echo $(_ldflags) | sed 's/-lproj/-Wl,-Bstatic -lproj -Wl,-Bdynamic/')
   endif
   override LDFLAGS += $(_ldflags)
 else  # default is shared
-  override LDFLAGS += $(shell pkg-config proj --libs)
+  override LDFLAGS += $(shell ${PKG_CONFIG} proj --libs)
 endif
 
 all: $(PROGRAM)
diff --git a/test/postinstall/test_autotools.sh b/test/postinstall/test_autotools.sh
index 28954c4d..c3e0e60b 100755
--- a/test/postinstall/test_autotools.sh
+++ b/test/postinstall/test_autotools.sh
@@ -12,12 +12,13 @@ main_setup $1 $2
 echo "Running post-install tests with autotools/pkg-config (${BUILD_MODE})"
 
 if [ ${BUILD_MODE} = shared ]; then
-  export PKG_CONFIG="pkg-config"
+  export PKG_CONFIG="${PKG_CONFIG:-pkg-config}"
   ENABLE_STATIC_PROJ=no
 else
-  export PKG_CONFIG="pkg-config --static"
+  export PKG_CONFIG="${PKG_CONFIG:-pkg-config} --static"
   ENABLE_STATIC_PROJ=yes
 fi
+echo ,${PKG_CONFIG},
 
 export PKG_CONFIG_PATH=${prefix}/lib/pkgconfig
 
diff --git a/test/postinstall/test_pkg-config.sh b/test/postinstall/test_pkg-config.sh
index a9ccabce..d170e189 100755
--- a/test/postinstall/test_pkg-config.sh
+++ b/test/postinstall/test_pkg-config.sh
@@ -11,6 +11,7 @@ main_setup $1 $2
 
 echo "Running post-install tests with pkg-config (${BUILD_MODE})"
 
+export PKG_CONFIG="${PKG_CONFIG:-pkg-config}"
 export PKG_CONFIG_PATH=${prefix}/lib/pkgconfig
 
 if [ ${BUILD_MODE} = shared ]; then