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This patch makes token pasting work with -ftrack-macro-expansion turned on. It improves some pasting related tests of the gcc.dg/cpp subdirectory. Tested and bootstrapped on x86_64-unknown-linux-gnu against trunk. Note that the bootstrap with -ftrack-macro-expansion exhibits other separate issues that are addressed in subsequent patches. This patch just fixes one class of problems. The patch does pass bootstrap with -ftrack-macro-expansion turned off, though. libcpp/ * macro.c (paste_all_tokens): Put the token resulting from pasting into an extended token context with -ftrack-macro-location is in effect. gcc/testsuite/ * gcc.dg/cpp/paste17.c: New test case for -ftrack-macro-expansion=2 mode only. * gcc.dg/cpp/macro-exp-tracking-5.c: Likewise. From-SVN: r186966
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