--- fotocx-26.8.orig/Makefile
+++ fotocx-26.8/Makefile
@@ -36,10 +36,10 @@
    CFLAGS += -DDEBUG
 endif
 
-JXL_CFLAGS := $(shell pkg-config --cflags libjxl) 
-JXL_LDFLAGS := $(shell pkg-config --libs libjxl libjxl_threads libhwy            \
+JXL_CFLAGS := $(shell $(PKG_CONFIG) --cflags libjxl) 
+JXL_LDFLAGS := $(shell $(PKG_CONFIG) --libs libjxl libjxl_threads libhwy            \
                                      libbrotlicommon libbrotlidec)
-NETMAP_LDFLAGS := $(shell pkg-config --libs webkit2gtk-4.1)
+NETMAP_LDFLAGS := $(shell $(PKG_CONFIG) --libs webkit2gtk-4.1)
 
 LIBS = `$(PKG_CONFIG) --libs gtk+-3.0` -lrt -lpthread -ltiff -lpng -ljpeg