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Fix build on FreeBSD: 'environ' is not defined in a library

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On FreeBSD, this variable is defined as a common symbol in the object file
/usr/lib/crt1.o, which is injected into the final application by the
compiler. This means when linking any library, 'environ' cannot be found
and we can't use -Wl,-no-undefined on FreeBSD.

I don't know why this wasn't caught before. Most likely, we failed to
pass the linker flag until some recent change to the buildsystem.

qprocess_unix.cpp:279: undefined reference to `environ'

Change-Id: I7a9e11d7b64a4cc78e24ffff142e02dbf188bca5
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
This commit is contained in:
Thiago Macieira 2016-01-29 13:27:53 -08:00 committed by Jani Heikkinen
parent 3726c46735
commit ccf74b5928
1 changed files with 4 additions and 0 deletions
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4
src/corelib/corelib.pro
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@ -27,6 +27,10 @@ ANDROID_PERMISSIONS = \
android.permission.INTERNET \
android.permission.WRITE_EXTERNAL_STORAGE
# QtCore can't be compiled with -Wl,-no-undefined because it uses the "environ"
# variable and on FreeBSD, this variable is in the final executable itself
freebsd: QMAKE_LFLAGS_NOUNDEF =
load(qt_module)
load(qfeatures)