[PATCH] CMakeList.txt: make python optional

[PATCH] CMakeList.txt: make python optional

[Matteo Croce]

From: Matteo Croce <mcroce@microsoft.com>

ostra-cg, which requires python, is installed in the destination dir.
Make it optional for embedded distributions which doesn't have the
python interpreter available.

Signed-off-by: Matteo Croce <mcroce@microsoft.com>
---
 CMakeLists.txt | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4140574..8523bce 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -61,6 +61,7 @@ find_package(DWARF REQUIRED)
 find_package(ZLIB REQUIRED)
 find_package(argp REQUIRED)
 find_package(obstack REQUIRED)
+find_package(Python3 QUIET)
 
 # make sure git submodule(s) are checked out
 find_package(Git QUIET)
@@ -185,8 +186,10 @@ install(FILES dwarves.h dwarves_emit.h dwarves_reorganize.h
 	      elfcreator.h elf_symtab.h hash.h libctf.h
 	DESTINATION ${CMAKE_INSTALL_PREFIX}/include/dwarves/)
 install(FILES man-pages/pahole.1 DESTINATION ${CMAKE_INSTALL_PREFIX}/share/man/man1/)
-install(PROGRAMS ostra/ostra-cg DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
+if(Python3_FOUND)
+	install(PROGRAMS ostra/ostra-cg DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
+	install(FILES ostra/python/ostra.py DESTINATION ${CMAKE_INSTALL_PREFIX}/share/dwarves/runtime/python)
+endif()
 install(PROGRAMS btfdiff fullcircle DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
-install(FILES ostra/python/ostra.py DESTINATION ${CMAKE_INSTALL_PREFIX}/share/dwarves/runtime/python)
 install(FILES lib/Makefile lib/ctracer_relay.c lib/ctracer_relay.h lib/linux.blacklist.cu
 	DESTINATION ${CMAKE_INSTALL_PREFIX}/share/dwarves/runtime)
-- 
2.31.1

Re: [PATCH] CMakeList.txt: make python optional

[Arnaldo Carvalho de Melo]

Em Mon, Aug 30, 2021 at 05:04:40PM +0200, Matteo Croce escreveu:
> From: Matteo Croce <mcroce@microsoft.com>
> 
> ostra-cg, which requires python, is installed in the destination dir.
> Make it optional for embedded distributions which doesn't have the
> python interpreter available.

Thanks, applied.

- Arnaldo
 
> Signed-off-by: Matteo Croce <mcroce@microsoft.com>
> ---
>  CMakeLists.txt | 7 +++++--
>  1 file changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/CMakeLists.txt b/CMakeLists.txt
> index 4140574..8523bce 100644
> --- a/CMakeLists.txt
> +++ b/CMakeLists.txt
> @@ -61,6 +61,7 @@ find_package(DWARF REQUIRED)
>  find_package(ZLIB REQUIRED)
>  find_package(argp REQUIRED)
>  find_package(obstack REQUIRED)
> +find_package(Python3 QUIET)
>  
>  # make sure git submodule(s) are checked out
>  find_package(Git QUIET)
> @@ -185,8 +186,10 @@ install(FILES dwarves.h dwarves_emit.h dwarves_reorganize.h
>  	      elfcreator.h elf_symtab.h hash.h libctf.h
>  	DESTINATION ${CMAKE_INSTALL_PREFIX}/include/dwarves/)
>  install(FILES man-pages/pahole.1 DESTINATION ${CMAKE_INSTALL_PREFIX}/share/man/man1/)
> -install(PROGRAMS ostra/ostra-cg DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
> +if(Python3_FOUND)
> +	install(PROGRAMS ostra/ostra-cg DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
> +	install(FILES ostra/python/ostra.py DESTINATION ${CMAKE_INSTALL_PREFIX}/share/dwarves/runtime/python)
> +endif()
>  install(PROGRAMS btfdiff fullcircle DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
> -install(FILES ostra/python/ostra.py DESTINATION ${CMAKE_INSTALL_PREFIX}/share/dwarves/runtime/python)
>  install(FILES lib/Makefile lib/ctracer_relay.c lib/ctracer_relay.h lib/linux.blacklist.cu
>  	DESTINATION ${CMAKE_INSTALL_PREFIX}/share/dwarves/runtime)
> -- 
> 2.31.1

-- 

- Arnaldo