Problem: duplicated pkg-config template

Solution: use the same for both autotools and cmake

CMakeLists.txt

@@ -918,7 +918,12 @@ file(REMOVE ${CMAKE_CURRENT_SOURCE_DIR}/src/platform.hpp)
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/builds/cmake/platform.hpp.in ${CMAKE_CURRENT_BINARY_DIR}/platform.hpp)
 list(APPEND sources ${CMAKE_CURRENT_BINARY_DIR}/platform.hpp)
 
-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/src/libzmq.pc.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/libzmq.pc @ONLY)
+set(prefix ${CMAKE_INSTALL_PREFIX})
+set(exec_prefix ${prefix})
+set(libdir ${prefix}/lib)
+set(includedir ${prefix}/include)
+set(VERSION ${ZMQ_VERSION_MAJOR}.${ZMQ_VERSION_MINOR}.${ZMQ_VERSION_PATCH})
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/src/libzmq.pc.in ${CMAKE_CURRENT_BINARY_DIR}/libzmq.pc @ONLY)
 set(zmq-pkgconfig ${CMAKE_CURRENT_BINARY_DIR}/libzmq.pc)
 
 if(NOT ZMQ_BUILD_FRAMEWORK)

Makefile.am

@@ -1046,7 +1046,6 @@ EXTRA_DIST = \
 	CMakeLists.txt \
 	autogen.sh	\
 	version.sh	\
-	src/libzmq.pc.cmake.in \
 	ci_build.sh \
 	src/libzmq.vers \
 	src/version.rc.in \

src/libzmq.pc.cmake.in

-prefix=@CMAKE_INSTALL_PREFIX@
-exec_prefix=${prefix}
-libdir=${prefix}/lib
-includedir=${prefix}/include
-
-Name: libzmq
-Description: 0MQ c++ library
-Version: @ZMQ_VERSION_MAJOR@.@ZMQ_VERSION_MINOR@.@ZMQ_VERSION_PATCH@
-Libs: -L${libdir} -lzmq
-Libs.private: -lstdc++ @pkg_config_libs_private@
-Cflags: -I${includedir} @pkg_config_defines@