4.104.114.84.95
Line | |
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1 | dnl |
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2 | dnl $Id$ |
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3 | dnl |
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4 | dnl Check whether the gcc accepts -isystem |
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5 | dnl |
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6 | |
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7 | AC_DEFUN(RTEMS_GCC_ISYSTEM, |
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8 | [AC_REQUIRE([RTEMS_PROG_CC]) |
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9 | AC_CACHE_CHECK(whether $CC accepts -isystem,rtems_cv_gcc_isystem, |
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10 | [ |
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11 | rtems_cv_gcc_isystem=no |
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12 | if test x"$GCC" = x"yes"; then |
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13 | cat << EOF > conftest.h |
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14 | int conftest123(); |
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15 | EOF |
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16 | cat << EOF > conftest.c |
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17 | #include <conftest.h> |
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18 | int conftest123() {} |
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19 | EOF |
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20 | if test -z "`${CC} -isystem./ -c conftest.c 2>&1`";then |
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21 | rtems_cv_gcc_isystem=yes |
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22 | fi |
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23 | fi |
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24 | rm -f conftest* |
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25 | ])]) |
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