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2b9ed0e196
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@21481 72102866-910b-0410-8b05-ffd578937521
31 lines
1.2 KiB
Text
31 lines
1.2 KiB
Text
dnl AC_SYS_PROCFS_EXE_LINK
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dnl This macro checks for the existence of a symlink in /proc to the executable
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dnl file associated with the current process, and defines PROCFS_EXE_LINK to
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dnl the path it finds. Currently supports Linux and FreeBSD variants.
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dnl Copyright (C) 2005 Free Software Foundation
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dnl Copying and distribution of this file, with or without modification,
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dnl are permitted in any medium without royalty provided the copyright
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dnl notice and this notice are preserved.
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AC_DEFUN(AC_SYS_PROCFS_EXE_LINK,
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[ AC_REQUIRE([AC_SYS_PROCFS])
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AC_CACHE_CHECK([link to exe of process in /proc], ac_cv_sys_procfs_exe_link,
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[if test "$ac_cv_sys_procfs" = yes; then
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# Linux 2.2.x and up
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if test -L /proc/self/exe; then
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ac_cv_sys_procfs_exe_link=/proc/self/exe
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# FreeBSD 4.x and up
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elif test -L /proc/curproc/file; then
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ac_cv_sys_procfs_exe_link=/proc/curproc/file
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else
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ac_cv_sys_procfs_exe_link=no
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fi
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else
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ac_cv_sys_procfs_exe_link=no
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fi])
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if test "$ac_cv_sys_procfs_exe_link" != no; then
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AC_DEFINE_UNQUOTED(PROCFS_EXE_LINK, ["$ac_cv_sys_procfs_exe_link"],
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[Define as the link to exe of process in /proc filesystem.])
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fi
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])
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