forked from Imagelibrary/rtems
5cbc9c5922
This is needed for building rtems correctly with Clang. Note that this change does not mean rtems can build correctly with mainline clang. However the change allows building rtems with a Clang toolchain that has a rtems frontend similar that of GCC's builtin rtems specs.
17 lines
405 B
Plaintext
17 lines
405 B
Plaintext
dnl Check whether the target compiler accepts -specs
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AC_DEFUN([RTEMS_GCC_SPECS],
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[AC_REQUIRE([RTEMS_PROG_CC])
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AC_CACHE_CHECK(whether $CC accepts -specs,rtems_cv_gcc_specs,
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[
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rtems_cv_gcc_specs=no
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if test x"$GCC" = x"yes"; then
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touch confspec
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echo 'void f(){}' >conftest.c
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if test -z "`${CC} -specs confspec -c conftest.c 2>&1`";then
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rtems_cv_gcc_specs=yes
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fi
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fi
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rm -f confspec conftest*
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])])
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