qt5base-lts/mkspecs/features/yacc.prf
Joni Poikelin c34d289c44 Fix building when lex source refers to a file generated by yacc
Scan lex and yacc sources for dependencies as if they were C source code,
which is close enough to reality.

This will unfortunately result in the generated source files depending on
the generated headers, while it should have been the object files created
from these sources which have that dependency. But qmake cannot do better,
and this is good enough.

Task-number: QTBUG-56507
Change-Id: Ic3e1941bf2e2820bfddf99deba854e1e82f83669
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
2016-11-01 04:41:21 +00:00

44 lines
2.2 KiB
Plaintext

#
# Yacc extra-compiler for handling files specified in the YACCSOURCES variable
#
{
yacc_decl.name = Yacc header
yacc_decl.input = YACCSOURCES
yacc_decl.variable_out = GENERATED_FILES
isEmpty(QMAKE_YACCFLAGS_MANGLE) {
QMAKE_YACCFLAGS_MANGLE = -p ${QMAKE_FILE_BASE} -b ${QMAKE_FILE_BASE}
QMAKE_YACC_HEADER = ${QMAKE_FILE_BASE}.tab.h
QMAKE_YACC_SOURCE = ${QMAKE_FILE_BASE}.tab.c
} else {
QMAKE_YACCFLAGS_MANGLE ~= s/\\$base/${QMAKE_FILE_BASE}/g #backwards compat
QMAKE_YACC_HEADER ~= s/\\$base/${QMAKE_FILE_BASE}/g
QMAKE_YACC_SOURCE ~= s/\\$base/${QMAKE_FILE_BASE}/g
}
QMAKE_YACCDECLFLAGS = $$QMAKE_YACCFLAGS
!yacc_no_name_mangle:QMAKE_YACCDECLFLAGS += $$QMAKE_YACCFLAGS_MANGLE
yacc_decl.commands = \
-$(DEL_FILE) $${QMAKE_CPP_MOD_MOC}${QMAKE_FILE_BASE}$${QMAKE_MOD_YACC}$${first(QMAKE_EXT_H)} $${QMAKE_CPP_MOD_MOC}${QMAKE_FILE_BASE}$${QMAKE_MOD_YACC}$${first(QMAKE_EXT_CPP)}$$escape_expand(\\n\\t) \
$$QMAKE_YACC $$QMAKE_YACCDECLFLAGS ${QMAKE_FILE_IN}$$escape_expand(\\n\\t) \
$(MOVE) $${QMAKE_YACC_HEADER} $${QMAKE_CPP_MOD_MOC}${QMAKE_FILE_BASE}$${QMAKE_MOD_YACC}$${first(QMAKE_EXT_H)}$$escape_expand(\\n\\t) \
$(MOVE) $${QMAKE_YACC_SOURCE} $${QMAKE_CPP_MOD_MOC}${QMAKE_FILE_BASE}$${QMAKE_MOD_YACC}$${first(QMAKE_EXT_CPP)}$$escape_expand(\\n\\t)
yacc_decl.output = $${QMAKE_CPP_MOD_MOC}${QMAKE_FILE_BASE}$${QMAKE_MOD_YACC}$${first(QMAKE_EXT_H)}
silent:yacc_decl.commands = @echo Yacc ${QMAKE_FILE_IN} && $$yacc_decl.commands
QMAKE_EXTRA_COMPILERS += yacc_decl
}
{
yacc_impl.name = source for ${QMAKE_FILE_IN}
yacc_impl.input = YACCSOURCES
yacc_impl.variable_out = GENERATED_SOURCES
yacc_impl.dependency_type = TYPE_C
yacc_impl.commands = $$escape_expand(\\n) # We don't want any commands where, but if command is empty no rules are created
yacc_impl.depends = $${QMAKE_CPP_MOD_MOC}${QMAKE_FILE_BASE}$${QMAKE_MOD_YACC}$${first(QMAKE_EXT_H)} # Make sure we depend on the step above
yacc_impl.output = $${QMAKE_CPP_MOD_MOC}${QMAKE_FILE_BASE}$${QMAKE_MOD_YACC}$${first(QMAKE_EXT_CPP)} # Faked output from this step, output really created in step above
QMAKE_EXTRA_COMPILERS += yacc_impl
}