Compiler Flags in SUBDIR

[Redman]

TEMPLATE = subdirs

SUBDIRS = \
        app1 \
        app2\
        app3\
        app4\

# where to find the sub projects - give the folders
app1 = src/app1
app2.subdir  = src/app2
app3.subdir  = src/app3
app4.subdir = src/app4

# Build optimization
PRECOMPILED_HEADER = $$PWD/client/app/src/pch.h
CONFIG += precompile_header
QMAKE_CXXFLAGS += -MP -O2

Do these optimizations have any effect on this level or do I need to specifiy them for each app.pro?

[Redman]

@jsulm Thanks!
In MakeFile we see -O2 -MD

CXXFLAGS      = -nologo -Zc:wchar_t -FS -Zc:rvalueCast -Zc:inline -Zc:strictStrings -Zc:throwingNew -permissive- -Zc:__cplusplus -Zc:externConstexpr -O2 -MD -std:c++17 -utf-8 -W3 -w34100 -w34189 -w44996 -w44456 -w44457 -w44458 -wd4577 -wd4467 -EHsc $(DEFINES)

[jsulm]

@Redman said in Compiler Flags in SUBDIR:

Do these optimizations have any effect on this level or do I need to specifiy them for each app.pro?

You can simply build the whole thing and check what parameters were passed to the compiler.

[Redman]

@jsulm Thanks!
In MakeFile we see -O2 -MD

CXXFLAGS      = -nologo -Zc:wchar_t -FS -Zc:rvalueCast -Zc:inline -Zc:strictStrings -Zc:throwingNew -permissive- -Zc:__cplusplus -Zc:externConstexpr -O2 -MD -std:c++17 -utf-8 -W3 -w34100 -w34189 -w44996 -w44456 -w44457 -w44458 -wd4577 -wd4467 -EHsc $(DEFINES)