Building without Qt

[ryandesign]

Running cmake for GLE 4.3.4 fails with this message:

CMake Error at gui/CMakeLists.txt:10 (find_package):
  By not providing "FindQt5.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "Qt5", but
  CMake did not find one.

  Could not find a package configuration file provided by "Qt5" with any of
  the following names:

    Qt5Config.cmake
    qt5-config.cmake

  Add the installation prefix of "Qt5" to CMAKE_PREFIX_PATH or set "Qt5_DIR"
  to a directory containing one of the above files.  If "Qt5" provides a
  separate development package or SDK, be sure it has been installed.


-- Configuring incomplete, errors occurred!

I was able to build only the non-Qt parts of GLE 4.2.5 using the configure argument --with-qt=no. Now that the build system has been converted to CMake in GLE 4.3.x, what is the equivalent CMake option to build only the non-Qt parts?

[ryandesign]

This patch allowed me to get through cmake and make without having Qt (or ghostscript which as far as I know is only used by the Qt GUI):

--- src/CMakeLists.txt.orig	2023-04-10 19:46:19.000000000 -0500
+++ src/CMakeLists.txt	2024-07-26 06:22:10.000000000 -0500
@@ -228,14 +228,6 @@
 #
 #find_package(poppler)
 #
-# -- GHOSTscript or GHOSTPDL include directory only since gle links to installed version at runtime
-#
-find_path(GDIR1 iapi.h PATHS ${GHOSTPDL_ROOT} PATH_SUFFIXES psi base devices ghostscript )
-list(APPEND GHOSTPDL_INCLUDE_DIRS ${GDIR1} )
-find_path(GDIR2 gdevdsp.h PATHS ${GHOSTPDL_ROOT} PATH_SUFFIXES psi base devices ghostscript )
-list(APPEND GHOSTPDL_INCLUDE_DIRS ${GDIR2} )
-find_path(GDIR3 gserrors.h PATHS ${GHOSTPDL_ROOT} PATH_SUFFIXES psi base devices ghostscript )
-list(APPEND GHOSTPDL_INCLUDE_DIRS ${GDIR3} )
 
 include_directories(
 	${ZLIB_INCLUDE_DIRS}
@@ -245,7 +237,6 @@
 	${PNG_INCLUDE_DIRS}
 	${CAIRO_INCLUDE_DIRS}
 	${PIXMAN_INCLUDE_DIRS}
-	${GHOSTPDL_INCLUDE_DIRS}
 )
 #
 # -- compile time definitions
@@ -450,12 +441,10 @@
 endif()
 add_subdirectory(fbuild)
 add_subdirectory(makefmt)
-add_subdirectory(gui)
 add_subdirectory(fonts)
 add_subdirectory(TeX)
 add_dependencies(fbuild gle)
 add_dependencies(makefmt gle)
-add_dependencies(qgle gle)
 add_dependencies(fonts fbuild makefmt)
 
 # documentation file installation in doc folder

However make install didn't actually install anything.

What I expected it to install—what GLE 4.2.5 installed—is:

$PREFIX/bin/gle
$PREFIX/bin/glebtool
$PREFIX/bin/glegs
$PREFIX/bin/manip
$PREFIX/lib/libgle-graphics-$VERSION.dylib
$PREFIX/lib/pkgconfig/gle-graphics.pc
$PREFIX/share/gle-graphics/$VERSION/*
$PREFIX/share/man/man1/gle.1

[ryandesign]

However make install didn't actually install anything.

I see this is because files only get installed when CMAKE_BUILD_TYPE is Release or Debug:

https://github.com/vlabella/GLE/blob/97cf2ca024ef9a12abf6fe6024439faf0c82a0e8/src/gle/CMakeLists.txt#L192-L194

(I was using a different build type.) This was also noted in #10.

[vlabella]

added cmake option BUILD_GUI which is on by default. Can be turned off by setting -DBUILD_GUI=FALSE when running cmake to eliminate the building of the GUI. Note that ghostscript is utilized by the CLI gle to make bitmap files like PNG.