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fix(build): surpress spurious warnings from gcc in -E preprocessor mode

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Since #29315 we are also preprocessing header files in order to find
functions which need prototype declarations. gcc emits a spurious
"warning: #pragma once in main file" even when when you are just
using `gcc -E` which causes a bit of noise in compiler output.

As a workaround, surpress all warnings for this step, this should be pretty
much harmless as we will still get preprocessor warnings when doing
actual compilation `gcc -c` later.

reference: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89808
This commit is contained in:
bfredl
2024-08-05 11:15:59 +02:00
parent 0c2860d9e5
commit 217e26cb64
1 changed files with 1 additions and 1 deletions
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2
src/nvim/CMakeLists.txt
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@ -563,7 +563,7 @@ foreach(sfile ${NVIM_SOURCES}
if(MSVC) if(MSVC)
set(PREPROC_OUTPUT /P /Fi${gf_i} /nologo) set(PREPROC_OUTPUT /P /Fi${gf_i} /nologo)
else() else()
set(PREPROC_OUTPUT -E -o ${gf_i}) set(PREPROC_OUTPUT -w -E -o ${gf_i})
endif() endif()
set(depends "${HEADER_GENERATOR}" "${sfile}" "${LUA_GEN_DEPS}") set(depends "${HEADER_GENERATOR}" "${sfile}" "${LUA_GEN_DEPS}")