Generate pkgconfig files

This allow to easily include the libraries in other projects.

See https://www.freedesktop.org/wiki/Software/pkg-config/ for more information
about what pkg-config is.

Author: tintou

CMakeLists.txt

@@ -72,6 +72,7 @@ set_if_not_defined(NIFTI_INSTALL_RUNTIME_DIR bin)
 set_if_not_defined(NIFTI_INSTALL_LIBRARY_DIR lib)
 set_if_not_defined(NIFTI_INSTALL_ARCHIVE_DIR ${NIFTI_INSTALL_LIBRARY_DIR})
 set_if_not_defined(NIFTI_INSTALL_INCLUDE_DIR include/nifti)
+set_if_not_defined(NIFTI_INSTALL_PKGCONFIG_DIR ${NIFTI_INSTALL_LIBRARY_DIR}/pkgconfig)
 set_if_not_defined(NIFTI_INSTALL_MAN_DIR share/man/man1)
 set_if_not_defined(NIFTI_INSTALL_DOC_DIR share/doc/${PROJECT_NAME})
 set_if_not_defined(NIFTI_ZLIB_LIBRARIES "")

cmake/nifti_macros.cmake

@@ -134,6 +134,8 @@ function(install_nifti_target target_name)
             PUBLIC_HEADER DESTINATION ${NIFTI_INSTALL_INCLUDE_DIR}
           COMPONENT Development
             INCLUDES DESTINATION ${NIFTI_INSTALL_INCLUDE_DIR}
+          COMPONENT Development
+            PKG_CONFIG DESTINATION ${NIFTI_INSTALL_PKGCONFIG_DIR}
           )
 endfunction()
 

nifti2/CMakeLists.txt

@@ -11,11 +11,13 @@ set_target_properties(
 # Set library version when building shared libs.
 if(BUILD_SHARED_LIBS)
     get_lib_version_vars("nifti2_io_version.h" NIFTI2_VERSION NIFTI2_MAJOR_VERSION)
+    configure_file(nifti2.pc.in nifti2.pc @ONLY)
     set_target_properties(${NIFTI_NIFTILIB2_NAME}
       PROPERTIES
         ${NIFTI_LIBRARY_PROPERTIES}
         VERSION ${NIFTI2_VERSION}
         SOVERSION ${NIFTI2_MAJOR_VERSION}
+        PKG_CONFIG nifti2.pc
         )
 endif()
 install_nifti_target(${NIFTI_NIFTILIB2_NAME})

nifti2/nifti2.pc.in

@@ -0,0 +1,11 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix="${prefix}"
+libdir="${prefix}/@NIFTI_INSTALL_LIBRARY_DIR@"
+includedir="${prefix}/@NIFTI_INSTALL_INCLUDE_DIR@"
+
+Name: nifti2
+Description: Core i/o routines for reading and writing nifti-2 format files
+Version: @PROJECT_VERSION@
+Requires: znzlib
+Libs: -L${libdir} -lnifti2
+Cflags: -I${includedir}

nifticdf/CMakeLists.txt

@@ -11,11 +11,13 @@ target_compile_options(${NIFTI_CDFLIB_NAME} PRIVATE "-D__COMPILE_UNUSED_FUNCTION
 target_link_libraries(${NIFTI_CDFLIB_NAME} PUBLIC ${NIFTI_PACKAGE_PREFIX}niftiio)
 get_lib_version_vars("nifticdf_version.h" NIFTICDF_VERSION NIFTICDF_MAJOR_VERSION)
 if(BUILD_SHARED_LIBS)
+    configure_file(nifticdf.pc.in nifticdf.pc @ONLY)
     set_target_properties(${NIFTI_CDFLIB_NAME}
       PROPERTIES
         ${NIFTI_LIBRARY_PROPERTIES}
         VERSION ${NIFTICDF_VERSION}
         SOVERSION ${NIFTICDF_MAJOR_VERSION}
+        PKG_CONFIG nifticdf.pc
         )
 endif()
 install_nifti_target(${NIFTI_CDFLIB_NAME})

nifticdf/nifticdf.pc.in

@@ -0,0 +1,10 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix="${prefix}"
+libdir="${prefix}/@NIFTI_INSTALL_LIBRARY_DIR@"
+includedir="${prefix}/@NIFTI_INSTALL_INCLUDE_DIR@"
+
+Name: nifticdf
+Description: Functions to compute cumulative distributions and their inverses
+Version: @PROJECT_VERSION@
+Libs: -L${libdir} -lnifticdf
+Cflags: -I${includedir}

niftilib/CMakeLists.txt

@@ -11,11 +11,13 @@ set_target_properties(
 # Set library version when building shared libs.
 if(BUILD_SHARED_LIBS)
     get_lib_version_vars("nifti1_io_version.h" NIFTI_VERSION NIFTI_MAJOR_VERSION)
+    configure_file(niftiio.pc.in niftiio.pc @ONLY)
     set_target_properties(${NIFTI_NIFTILIB_NAME}
       PROPERTIES
         ${NIFTI_LIBRARY_PROPERTIES}
         VERSION ${NIFTI_VERSION}
         SOVERSION ${NIFTI_MAJOR_VERSION}
+        PKG_CONFIG niftiio.pc
         )
 endif()
 install_nifti_target(${NIFTI_NIFTILIB_NAME})

niftilib/niftiio.pc.in

@@ -0,0 +1,11 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix="${prefix}"
+libdir="${prefix}/@NIFTI_INSTALL_LIBRARY_DIR@"
+includedir="${prefix}/@NIFTI_INSTALL_INCLUDE_DIR@"
+
+Name: niftiio
+Description: Core i/o routines for reading and writing nifti-1 format files
+Version: @PROJECT_VERSION@
+Requires: znzlib
+Libs: -L${libdir} -lnitfiio
+Cflags: -I${includedir}

znzlib/CMakeLists.txt

@@ -11,11 +11,13 @@ target_compile_definitions(${NIFTI_ZNZLIB_NAME} PUBLIC  ${ZNZ_COMPILE_DEF})
 # Set library version if building shared libs.
 if(BUILD_SHARED_LIBS)
     get_lib_version_vars("znzlib_version.h" ZNZLIB_VERSION ZNZLIB_MAJOR_VERSION)
+    configure_file(znzlib.pc.in znzlib.pc @ONLY)
     set_target_properties(${NIFTI_ZNZLIB_NAME}
       PROPERTIES
         ${NIFTI_LIBRARY_PROPERTIES}
         VERSION ${ZNZLIB_VERSION}
         SOVERSION ${ZNZLIB_MAJOR_VERSION}
+        PKG_CONFIG znzlib.pc
         )
 endif()
 install_nifti_target(${NIFTI_ZNZLIB_NAME})

znzlib/znzlib.pc.in

@@ -0,0 +1,12 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix="${prefix}"
+libdir="${prefix}/@NIFTI_INSTALL_LIBRARY_DIR@"
+includedir="${prefix}/@NIFTI_INSTALL_INCLUDE_DIR@"
+zlib_support=true
+
+Name: znzlib
+Description: Low level library for handling read/write of compressed files
+Version: @PROJECT_VERSION@
+Requires: zlib
+Libs: -L${libdir} -lznz
+Cflags: -I${includedir}