CMake: added support for parsing install directories defined as parameters

RPM build tools pass specifications of installation directories to CMake that
must be used to properly install binary and configuration files. Manual
processing is necessary because CMake module GNUInstallDirs ingores these
parameters and provides different directories on old systems.

Author: Lukas955

CMakeLists.txt

@@ -21,9 +21,9 @@ set(IPFIXCOL_VERSION
 
 # Include modules
 include(CMakeModules/git_info.cmake)
+include(CMakeModules/install_dirs.cmake)
 include(CheckCCompilerFlag)
 include(CheckCXXCompilerFlag)
-include(GNUInstallDirs)
 
 # Include custom FindXXX modules
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/CMakeModules")

CMakeModules/install_dirs.cmake

@@ -0,0 +1,44 @@
+# The purpose of this file is to automatically determine install directories
+#
+# If no directories are defined, use GNU install directories by default.
+# However, in case of RPM build, install directories are typically passed
+# to CMake as definitions that overwrites the default paths.
+#
+
+include(GNUInstallDirs)
+
+# Binary directories
+set(INSTALL_DIR_BIN ${CMAKE_INSTALL_FULL_BINDIR})
+
+# Library directories
+if (DEFINED LIB_INSTALL_DIR)
+    set(INSTALL_DIR_LIB ${LIB_INSTALL_DIR})
+else()
+    set(INSTALL_DIR_LIB ${CMAKE_INSTALL_FULL_LIBDIR})
+endif()
+
+# Include directories
+if (DEFINED INCLUDE_INSTALL_DIR)
+    set(INSTALL_DIR_INCLUDE ${INCLUDE_INSTALL_DIR})
+else()
+    set(INSTALL_DIR_INCLUDE ${CMAKE_INSTALL_FULL_INCLUDEDIR})
+endif()
+
+# System configuration
+if (DEFINED SYSCONF_INSTALL_DIR)
+    set(INSTALL_DIR_SYSCONF ${SYSCONF_INSTALL_DIR})
+else()
+    set(INSTALL_DIR_SYSCONF ${CMAKE_INSTALL_FULL_SYSCONFDIR})
+endif()
+
+# Share files (architecture independend data)
+if (DEFINED SHARE_INSTALL_PREFIX)
+    set(INSTALL_DIR_SHARE ${SHARE_INSTALL_PREFIX})
+else()
+    set(INSTALL_DIR_SHARE ${CMAKE_INSTALL_FULL_DATAROOTDIR})
+endif()
+
+set(INSTALL_DIR_INFO "${INSTALL_DIR_SHARE}/info/")
+set(INSTALL_DIR_MAN  "${INSTALL_DIR_SHARE}/man/")
+set(INSTALL_DIR_DOC  "${INSTALL_DIR_SHARE}/doc/${CMAKE_PROJECT_NAME}/")
+

pkg/CMakeLists.txt

@@ -67,7 +67,7 @@ if (PKG_CONFIG_FOUND)
         @ONLY)
     install(
         FILES "${CMAKE_CURRENT_BINARY_DIR}/ipfixcol2.pc"
-        DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/pkgconfig/")
+        DESTINATION "${INSTALL_DIR_LIB}/pkgconfig/")
 endif()
 
 # Package builders

pkg/ipfixcol2.pc.in

@@ -1,5 +1,4 @@
-prefix=@CMAKE_INSTALL_PREFIX@
-includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
+includedir=@INSTALL_DIR_INCLUDE@
 
 Name: @PROJECT_NAME@
 Description: @IPFIXCOL_DESCRIPTION@

src/build_config.h.in

@@ -68,13 +68,13 @@
 
 /** \brief Path to the directory with configuration                       */
 #define IPX_DEFAULT_CONFIG_DIR \
-    "@CMAKE_INSTALL_FULL_SYSCONFDIR@/ipfixcol2/"
+    "@INSTALL_DIR_SYSCONF@/ipfixcol2/"
 /** \brief Path to default (if not specified) user configuration file     */
 #define IPX_DEFAULT_STARTUP_CONFIG \
     IPX_DEFAULT_CONFIG_DIR "startup.xml"
 /** \brief Path to the directory with plugins                             */
 #define IPX_DEFAULT_PLUGINS_DIR \
-    "@CMAKE_INSTALL_FULL_LIBDIR@/ipfixcol2/"
+    "@INSTALL_DIR_LIB@/ipfixcol2/"
 
 /** \brief Compiler name and version                                      */
 #define IPX_BUILD_COMPILER \

src/plugins/input/dummy/CMakeLists.txt

@@ -7,5 +7,5 @@ add_library(dummy-input MODULE
 
 install(
     TARGETS dummy-input
-    LIBRARY DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/ipfixcol2/"
-)
+    LIBRARY DESTINATION "${INSTALL_DIR_LIB}/ipfixcol2/"
+)

src/plugins/input/tcp/CMakeLists.txt

@@ -7,7 +7,7 @@ add_library(tcp-input MODULE
 
 install(
     TARGETS tcp-input
-    LIBRARY DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/ipfixcol2/"
+    LIBRARY DESTINATION "${INSTALL_DIR_LIB}/ipfixcol2/"
 )
 
 if (ENABLE_DOC_MANPAGE)
@@ -23,6 +23,6 @@ if (ENABLE_DOC_MANPAGE)
 
     install(
         FILES "${DST_FILE}"
-        DESTINATION "${CMAKE_INSTALL_FULL_MANDIR}/man7"
+        DESTINATION "${INSTALL_DIR_MAN}/man7"
     )
-endif()
+endif()

src/plugins/input/udp/CMakeLists.txt

@@ -7,7 +7,7 @@ add_library(udp-input MODULE
 
 install(
     TARGETS udp-input
-    LIBRARY DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/ipfixcol2/"
+    LIBRARY DESTINATION "${INSTALL_DIR_LIB}/ipfixcol2/"
 )
 
 if (ENABLE_DOC_MANPAGE)
@@ -23,6 +23,6 @@ if (ENABLE_DOC_MANPAGE)
 
     install(
         FILES "${DST_FILE}"
-        DESTINATION "${CMAKE_INSTALL_FULL_MANDIR}/man7"
+        DESTINATION "${INSTALL_DIR_MAN}/man7"
     )
-endif()
+endif()

src/plugins/intermediate/anonymization/CMakeLists.txt

@@ -11,7 +11,7 @@ add_library(anonymization-intermediate MODULE
 
 install(
     TARGETS anonymization-intermediate
-    LIBRARY DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/ipfixcol2/"
+    LIBRARY DESTINATION "${INSTALL_DIR_LIB}/ipfixcol2/"
 )
 
 if (ENABLE_DOC_MANPAGE)
@@ -27,6 +27,6 @@ if (ENABLE_DOC_MANPAGE)
 
     install(
         FILES "${DST_FILE}"
-        DESTINATION "${CMAKE_INSTALL_FULL_MANDIR}/man7"
+        DESTINATION "${INSTALL_DIR_MAN}/man7"
     )
-endif()
+endif()

src/plugins/output/dummy/CMakeLists.txt

@@ -7,7 +7,7 @@ add_library(dummy-output MODULE
 
 install(
     TARGETS dummy-output
-    LIBRARY DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/ipfixcol2/"
+    LIBRARY DESTINATION "${INSTALL_DIR_LIB}/ipfixcol2/"
 )
 
 if (ENABLE_DOC_MANPAGE)
@@ -23,6 +23,6 @@ if (ENABLE_DOC_MANPAGE)
 
     install(
         FILES "${DST_FILE}"
-        DESTINATION "${CMAKE_INSTALL_FULL_MANDIR}/man7"
+        DESTINATION "${INSTALL_DIR_MAN}/man7"
     )
-endif()
+endif()