Create a utility function configure_proj_pc() and use existing proj.p…

…c.in

CMakeLists.txt

@@ -286,18 +286,8 @@ install(FILES ${docfiles}
 ################################################################################
 # pkg-config support
 ################################################################################
-if(UNIX)
-  set(SQLITE3_LIBS -lsqlite3)
-  if(TIFF_ENABLED)
-    set(TIFF_LIBS -ltiff)
-  endif()
-  if(CURL_ENABLED)
-    set(CURL_LIBS -lcurl)
-  endif()
-  configure_file(
-    ${CMAKE_CURRENT_SOURCE_DIR}/cmake/proj.pc.cmake.in
-    ${CMAKE_CURRENT_BINARY_DIR}/proj.pc
-    @ONLY)
+if(UNIX OR MINGW)
+  configure_proj_pc()
 
   install(FILES
     ${CMAKE_CURRENT_BINARY_DIR}/proj.pc

cmake/Makefile.am

@@ -7,7 +7,6 @@ EXTRA_DIST = CMakeLists.txt \
 			ProjTest.cmake \
 			ProjVersion.cmake \
 			policies.cmake \
-			proj_config.cmake.in \
 			proj.pc.cmake.in \
 			project-config-version.cmake.in \
 			project-config.cmake.in \

cmake/ProjInstallPath.cmake

@@ -40,6 +40,8 @@ else()
   set(DEFAULT_INCLUDE_SUBDIR include)
   set(DEFAULT_DOC_SUBDIR share/doc/proj)
   set(DEFAULT_CMAKE_SUBDIR lib/cmake)
+  # Used for proj.pc
+  set(CMAKE_INSTALL_DATAROOTDIR share)
 endif()
 
 # Locations are changeable by user to customize layout of PROJ installation

cmake/ProjUtilities.cmake

@@ -14,7 +14,8 @@
 # Macros in this module:
 #
 #   print_variable
-#   proj_target_output_name:
+#   proj_target_output_name
+#   configure_proj_pc
 #
 ################################################################################
 
@@ -60,3 +61,31 @@ function(proj_target_output_name TARGET_NAME OUTPUT_NAME)
 
   set(${OUTPUT_NAME} ${TARGET_NAME}${SUFFIX} PARENT_SCOPE)
 endfunction()
+
+#
+# Configure a pkg-config file proj.pc
+# See also ProjInstallPath.cmake
+#
+
+function(configure_proj_pc)
+  set(prefix "${CMAKE_INSTALL_PREFIX}")
+  set(exec_prefix "$\{prefix\}")
+  set(libdir "$\{exec_prefix\}/${PROJ_LIB_SUBDIR}")
+  set(includedir "$\{prefix\}/${PROJ_INCLUDE_SUBDIR}")
+  set(datarootdir "$\{prefix\}/${CMAKE_INSTALL_DATAROOTDIR}")
+  set(datadir "$\{datarootdir\}")
+  set(PACKAGE "proj")
+  set(VERSION ${PROJ_VERSION})
+  set(SQLITE3_LIBS -lsqlite3)
+  if(TIFF_ENABLED)
+    set(TIFF_LIBS -ltiff)
+  endif()
+  if(CURL_ENABLED)
+    set(CURL_LIBS -lcurl)
+  endif()
+
+  configure_file(
+    ${CMAKE_CURRENT_SOURCE_DIR}/proj.pc.in
+    ${CMAKE_CURRENT_BINARY_DIR}/proj.pc
+    @ONLY)
+endfunction()