I'm getting this error for C++ library I'm using. It uses GNU Automake for building. Which flag(s) I should supply for the make command to lower the target build platform to avoid seeing this warning in Xcode project where I'm trying to link against the library?
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peetonn
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3 Answers
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You need to set the compiler flag -mmacosx-version-min to the version number of the SDK you want to build against. I don't use automake, but in cmake you'd set the variable CMAKE_OSX_DEPLOYMENT_TARGET, and in qmake you'd set the variable QMAKE_MACOSX_DEPLOYMENT_TARGET.
cbrnr
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4If you're having this problem with QtCreator, simply add `QMAKE_MACOSX_DEPLOYMENT_TARGET = xx.xx` to your project file, where xx.xx is the version number of the SDK used to compile the library – Dissident penguin Jul 22 '19 at 08:45
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1Thanks a lot `SET(CMAKE_OSX_DEPLOYMENT_TARGET 12.0)` worked for me – Rishabh Deep Singh Jul 20 '22 at 21:29
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As cbrnr answered, you have to use -mmacosx-version-min compiler flag. To pass compiler flag through make, you can use CXXFLAGS environment variable:
make CXXFLAGS="-mmacosx-version-min=10.10" <target or other make params>
MateuszL
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When using ./configure for a number of packages the macosx-version-min setting defaults to particular OS version - which can lead to the mentioned warning message if that OS version is lower than the macosx-version-min version that the linked library was compiled. However, this can be controlled by setting the MACOSX_DEPLOYMENT_TARGET environment variable before running configure e.g.
MACOSX_DEPLOYMENT_TARGET=10.14 ./configure
Pierz
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