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Add warning on gcc 9.

This commit is contained in:
Shanoah Alkire 2019-06-18 21:24:23 -07:00
parent 300f16df61
commit 43981f5981
1 changed files with 9 additions and 0 deletions
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9
cmake/SearchForStuff.cmake
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@ -213,3 +213,12 @@ WX_vs_SDL()
if(GCC_VERSION VERSION_EQUAL "7.0" OR GCC_VERSION VERSION_EQUAL "7.1")
GCC7_BUG()
endif()
if(GCC_VERSION GREATER_EQUAL "9.0" AND GCC_VERSION LESS "9.2")
message(WARNING "
It looks like you are compiling with 9.0.x or 9.1.x. Using these versions is not recommended,
as there is a bug known to cause the compiler to segfault while compiling. See patch
https://gitweb.gentoo.org/proj/gcc-patches.git/commit/?id=275ab714637a64672c6630cfd744af2c70957d5a
Even with that patch, compiling with LTO may still segfault. Use at your own risk!
This text being in a compile log in an open issue may cause it to be closed.")
endif()