(address . bug-guix@gnu.org)
13022545-b406-4f63-4039-d733cc856f1d@gmail.com
Though I am working on this in a personal fork channel, I can confirm
using time-machine that it is also an issue in guix's master branch.
Closest Commit (in guix master): 2ca4ae2993e20a1415fa25acf8fd6b993ee48c18
Since the build system uses multiple threads, the log itself is a mess.
Here's what it says when it fails.
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cd /tmp/guix-build-kdenlive-18.08.1.drv-0/build &&
/gnu/store/89rj5fqcg48afgk99639ds602pgf92k4-cmake-minimal-3.16.5/bin/cmake
-E cmake_depends "Unix Makefiles" /tmp/guix-build-kdenlive-18.08
.1.drv-0/source
/tmp/guix-build-kdenlive-18.08.1.drv-0/source/thumbnailer
/tmp/guix-build-kdenlive-18.08.1.drv-0/build
/tmp/guix-build-kdenlive-18.08.1.drv-0/build/thumbnailer /tmp/guix-buil
d-kdenlive-18.08.1.drv-0/build/thumbnailer/CMakeFiles/mltpreview.dir/DependInfo.cmake
--color=
/tmp/guix-build-kdenlive-18.08.1.drv-0/source/src/lib/external/media_ctrl/mediactrl.c:
In function ‘find_first_device’:
/tmp/guix-build-kdenlive-18.08.1.drv-0/source/src/lib/external/media_ctrl/mediactrl.c:406:2:
error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode
for (int i = 0; i < 32; i++ ) {
^~~
/tmp/guix-build-kdenlive-18.08.1.drv-0/source/src/lib/external/media_ctrl/mediactrl.c:406:2:
note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile
your code
make[2]: ***
[src/lib/external/media_ctrl/CMakeFiles/media_ctrl.dir/build.make:79:
src/lib/external/media_ctrl/CMakeFiles/media_ctrl.dir/mediactrl.c.o] Error 1
make[2]: Leaving directory '/tmp/guix-build-kdenlive-18.08.1.drv-0/build'
make[1]: *** [CMakeFiles/Makefile2:1291:
src/lib/external/media_ctrl/CMakeFiles/media_ctrl.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
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Based on this, I know it's a problem in mediactrl.c related to the
version of c the compiler is expecting. Here is what make calls when it
compiles mediactrl.c:
-------------------------------------------------------------------------------------
cd
/tmp/guix-build-kdenlive-18.08.1.drv-0/build/src/lib/external/media_ctrl
&& /gnu/store/rn75fm7adgx3pw5j8pg3bczfqq1y17lk-gcc-7.5.0/bin/gcc
-DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_CAST_TO_ASCII
-DQT_NO_URL_CAST_FROM_STRING -DTRANSLATION_DOMAIN=\"kdenlive\"
-D_GNU_SOURCE -D_LARGEFILE64_SOURCE
-I/tmp/guix-build-kdenlive-18.08.1.drv-0/build/src/lib/external/media_ctrl
-I/tmp/guix-buil
d-kdenlive-18.08.1.drv-0/source/src/lib/external/media_ctrl
-I/tmp/guix-build-kdenlive-18.08.1.drv-0/build/src/lib/external/media_ctrl/media_ctrl_autogen/include
-I/tmp/guix-build-kdenlive-1
8.08.1.drv-0/build/generated
-I/tmp/guix-build-kdenlive-18.08.1.drv-0/build -fno-common -Wall
-Wextra -Wcast-align -Wchar-subscripts -Wformat-security -Wno-long-long
-Wpointer-arith -Wundef
-Wmissing-format-attribute -Wwrite-strings
-Werror=implicit-function-declaration --std=c99 -O2 -g -DNDEBUG
-fvisibility=hidden -std=gnu90 -o
CMakeFiles/media_ctrl.dir/mediactrl.c.o -c /
tmp/guix-build-kdenlive-18.08.1.drv-0/source/src/lib/external/media_ctrl/mediactrl.c
-------------------------------------------------------------------------------------
I see --std=c99 and -std=gnu90 here. I'm guessing gcc favors std=-gnu90
in this situation.
I have passed --keep-failed and searched for "gnu90" in the source, and
only found it in the generated Makefiles. I also searched for gnu90 in
the package definition, but I can't find it.
I have tried adding the following line to the list of arguments in the
package definition, but it doesn't remove the -std=gnu90 option.
-------------------------------------------------------------------------------------
#:configure-flags '("-DCMAKE_C_FLAGS=-std=c99")))
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What a puzzle.
-Jesse Gibbons