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build: use CMAKE_C_COMPILER_LAUNCHER for ccache

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In some situations, CMake will find ccache in /usr/bin but /usr/bin
might not present in PATH. The former fix for this was to place the
ccache configuration logic before the project() declaration, but since
CMake 3.4 there is a new variable to be used which handles this case.

For the original problem, see also
https://crascit.com/2016/04/09/using-ccache-with-cmake/

Type: fix
Signed-off-by: Guillaume Solignac <gsoligna@cisco.com>
Change-Id: Ie026e02b2b06e2dca2d62da5fea7b1a104bcc7c3
This commit is contained in:
Guillaume Solignac
2023-01-11 11:56:29 +01:00
committed by Damjan Marion
parent 5d2346801b
commit 893a0c3130
1 changed files with 2 additions and 2 deletions
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4
src/cmake/ccache.cmake
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@ -20,8 +20,8 @@ if(VPP_USE_CCACHE)
message(STATUS "Looking for ccache")
if(CCACHE_FOUND)
message(STATUS "Looking for ccache - found")
set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
set(CMAKE_C_COMPILER_LAUNCHER ${CCACHE_FOUND})
set(CMAKE_CXX_COMPILER_LAUNCHER ${CCACHE_FOUND})
else(CCACHE_FOUND)
message(STATUS "Looking for ccache - not found")
endif(CCACHE_FOUND)