Revert "Merge pull request #11804 from obsidiansystems/remove-old-make"

This reverts commit 619eeb658a, reversing
changes made to 1af94bf471.

src/libutil-c/local.mk

@@ -0,0 +1,18 @@
+libraries += libutilc
+
+libutilc_NAME = libnixutilc
+
+libutilc_DIR := $(d)
+
+libutilc_SOURCES := $(wildcard $(d)/*.cc)
+
+# Not just for this library itself, but also for downstream libraries using this library
+
+INCLUDE_libutilc := -I $(d)
+libutilc_CXXFLAGS += $(INCLUDE_libutil) $(INCLUDE_libutilc)
+
+libutilc_LIBS = libutil
+
+libutilc_LDFLAGS += $(THREAD_LDFLAGS)
+
+libutilc_FORCE_INSTALL := 1

src/libutil-c/nix-util-c.pc.in

@@ -0,0 +1,9 @@
+prefix=@prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: Nix libutil C API
+Description: Common functions for the Nix C API, such as error handling
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lnixutil
+Cflags: -I${includedir}/nix -std=c++2a