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Restore the missing -P option for lex handling 

We don't know why it works, but we've been told that it fixes
some builds and we have no reason to think it will break others.

Task-number: QTBUG-52998
Change-Id: Iacaa1fb3c49e4d7aafd4167e591ff3724489872e
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
bb10
Andy Shaw 2016-04-08 09:10:08 +02:00
parent 4e0b76d810
commit 5dc421ec87
1 changed files with 5 additions and 1 deletions
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6
mkspecs/features/lex.prf
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@ -11,9 +11,13 @@
lex.variable_out = GENERATED_SOURCES
}
isEmpty(QMAKE_LEXFLAGS_MANGLE):QMAKE_LEXFLAGS_MANGLE = -P${QMAKE_FILE_BASE}
QMAKE_LEXEXTRAFLAGS = $$QMAKE_LEXFLAGS
!yacc_no_name_mangle:QMAKE_LEXEXTRAFLAGS += $$QMAKE_LEXFLAGS_MANGLE
contains(QMAKE_LEX, .*flex) {
# GNU flex, we can use -o outfile
lex.commands = $$QMAKE_LEX $$QMAKE_LEXFLAGS --nounistd -o ${QMAKE_FILE_OUT} ${QMAKE_FILE_IN}
lex.commands = $$QMAKE_LEX $$QMAKE_LEXEXTRAFLAGS --nounistd -o ${QMAKE_FILE_OUT} ${QMAKE_FILE_IN}
} else {
# stupid POSIX lex, it only generates a file called lex.yy.c
# or lex.prefix.c if the -P<prefix> option is active