--- a/Makefile	2019-05-20 01:04:59.000000000 +0200
+++ b/Makefile	2026-10-16 22:13:05.369742709 +0200
@@ -15,11 +15,10 @@ PREFIX ?= /usr
 MANPREFIX ?= $(PREFIX)/share/man
 LOCALSTATEDIR ?= /var/lib
 
-CFLAGS += $(shell libassuan-config --cflags)
-CFLAGS += $(shell libgcrypt-config --cflags)
+PKG_CONFIG ?= pkg-config
+CFLAGS += $(shell $(PKG_CONFIG) --cflags libassuan libgcrypt gpg-error)
 CFLAGS += --pedantic -Wall -Werror -std=c99
-LIBS += $(shell libassuan-config --libs)
-LIBS += $(shell libgcrypt-config --libs)
+LIBS += $(shell $(PKG_CONFIG) --libs libassuan libgcrypt gpg-error)
 
 REPLACEMENTS = src/monkeysphere src/monkeysphere-host		\
 src/monkeysphere-authentication src/share/defaultenv $(wildcard	\