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Instead of specifically addressing glibc, use NULL as second argument

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of realpath() when PATH_MAX is not defined in limits.h.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@35466 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Enrico Forestieri 2010-09-20 17:53:40 +00:00
parent 90e1f226b8
commit 4a2243135c
3 changed files with 27 additions and 5 deletions
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20
config/lyxinclude.m4
View File

@ -571,6 +571,26 @@ do
[AC_MSG_RESULT(no)])
done])
dnl this is used by the macro below to generate a proper config.h.in entry
m4_define([LYX_AH_CHECK_DEF],
[AH_TEMPLATE(AS_TR_CPP(HAVE_DEF_$1),
[Define to 1 if `$1' is defined in `$2'])])
dnl Check whether name is defined in header by using it in codesnippet.
dnl Called like LYX_CHECK_DEF(name, header, codesnippet)
dnl Defines HAVE_DEF_{NAME}
AC_DEFUN([LYX_CHECK_DEF],
[LYX_AH_CHECK_DEF($1, $2)
AC_MSG_CHECKING([if $1 is defined by header $2])
AC_TRY_COMPILE([#include <$2>], [$3],
lyx_have_def_name=yes,
lyx_have_def_name=no)
AC_MSG_RESULT($lyx_have_def_name)
if test "x$lyx_have_def_name" = xyes; then
AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_DEF_$1))
fi
])
dnl Extract the single digits from PACKAGE_VERSION and make them available.
dnl Defines LYX_MAJOR_VERSION, LYX_MINOR_VERSION, LYX_RELEASE_LEVEL,
dnl LYX_RELEASE_PATCH (possibly equal to 0), LYX_DIR_VER, and LYX_USERDIR_VER.

2
configure.ac
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@ -183,6 +183,8 @@ AC_TYPE_SIGNAL
AC_TYPE_SIZE_T
AC_TYPE_UID_T
LYX_CHECK_DEF(PATH_MAX, limits.h, [int n = PATH_MAX;])
AC_CHECK_FUNCS(chmod close _close fork getpid _getpid lstat mkfifo open _open pclose _pclose popen _popen readlink strerror)
# Check the form of mkdir()
AC_FUNC_MKDIR

10
src/support/os_unix.cpp
View File

@ -297,15 +297,15 @@ bool autoOpenFile(string const & filename, auto_open_mode const mode)
string real_path(string const & path)
{
#ifdef __GLIBC__
#ifdef HAVE_DEF_PATH_MAX
char rpath[PATH_MAX + 1];
char * result = realpath(path.c_str(), rpath);
return FileName::fromFilesystemEncoding(result ? rpath : path).absFileName();
#else
char * result = realpath(path.c_str(), NULL);
string ret = FileName::fromFilesystemEncoding(result ? result : path).absFileName();
free(result);
return ret;
#else
char rpath[PATH_MAX + 1];
char * result = realpath(path.c_str(), rpath);
return FileName::fromFilesystemEncoding(result ? rpath : path).absFileName();
#endif
}