Makefile: Fix wrong installation directory

Libraries are meant to be placed in $PREFIX/lib, and not $PREFIX/bin.

CMakeLists.txt

@@ -17,3 +17,9 @@ add_library(${PROJECT_NAME} STATIC "dynstr.c")
 target_include_directories(${PROJECT_NAME} PUBLIC "include")
 install(TARGETS ${PROJECT_NAME})
 install(DIRECTORY include/ TYPE INCLUDE)
+file(READ ${CMAKE_CURRENT_LIST_DIR}/dynstr.pc dynstr_pc)
+string(REPLACE /usr/local ${CMAKE_INSTALL_PREFIX} dynstr_repl_pc ${dynstr_pc})
+file(WRITE ${CMAKE_BINARY_DIR}/dynstr.pc ${dynstr_repl_pc})
+include(GNUInstallDirs)
+install(FILES ${CMAKE_BINARY_DIR}/dynstr.pc
+    DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)

Makefile

@@ -15,6 +15,8 @@
 .POSIX:
 
 PREFIX = /usr/local
+DST = $(PREFIX)/lib
+PC_DST = $(DST)/pkgconfig
 PROJECT = libdynstr.a
 CFLAGS = -Iinclude
 DEPS = \
@@ -22,16 +24,21 @@ DEPS = \
 
 all: $(PROJECT)
 
-install: $(PROJECT)
+install: $(PROJECT) $(PC_DST)/dynstr.pc
 	mkdir -p $(PREFIX)/include
 	cp include/dynstr.h $(PREFIX)/include
 	chmod 0644 $(PREFIX)/include/dynstr.h
-	mkdir -p $(PREFIX)/bin
-	cp $(PROJECT) $(PREFIX)/bin
-	chmod 0755 $(PREFIX)/bin/$(PROJECT)
+	mkdir -p $(DST)
+	cp $(PROJECT) $(DST)
+	chmod 0755 $(DST)/$(PROJECT)
 
 clean:
 	rm -f $(DEPS)
 
 $(PROJECT): $(DEPS)
 	$(AR) $(ARFLAGS) $@ $(DEPS)
+
+$(PC_DST)/dynstr.pc: dynstr.pc
+	mkdir -p $(PC_DST)
+	sed -e 's,/usr/local,$(PREFIX),' $< > $@
+	chmod 0644 $@

dynstr.pc

@@ -0,0 +1,11 @@
+prefix=/usr/local
+exec_prefix=${prefix}
+includedir=${prefix}/include
+libdir=${exec_prefix}/lib
+
+Name: dynstr
+Url: https://gitea.privatedns.org/xavi/dynstr
+Description: Minimal library that provides dynamic strings using plain C99.
+Version: 0.1.0
+Cflags: -I${includedir}
+Libs: -L${libdir} -ldynstr