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ENH: Added KWSYS_SHARED_FORWARD_OPTION_COMMAND option to allow users to replace the command executed. Extended documentation at top of file.

This commit is contained in:
Brad King 2006-09-21 10:04:55 -04:00
parent ef8771ed75
commit b6e8574ab1
1 changed files with 56 additions and 13 deletions
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69
Source/kwsys/SharedForward.h.in
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@ -26,6 +26,7 @@
#define @KWSYS_NAMESPACE@_SHARED_FORWARD_PATH_INSTALL "../lib/foo-1.2"
#define @KWSYS_NAMESPACE@_SHARED_FORWARD_EXE_BUILD "foo-real"
#define @KWSYS_NAMESPACE@_SHARED_FORWARD_EXE_INSTALL "../lib/foo-1.2/foo-real"
#define @KWSYS_NAMESPACE@_SHARED_FORWARD_OPTION_COMMAND "--command"
#define @KWSYS_NAMESPACE@_SHARED_FORWARD_OPTION_PRINT "--print"
#define @KWSYS_NAMESPACE@_SHARED_FORWARD_OPTION_LDD "--ldd"
#if defined(CMAKE_INTDIR)
@ -36,12 +37,32 @@
{
return @KWSYS_NAMESPACE@_shared_forward_to_real(argc, argv);
}
*/
Specify search and executable paths relative to the forwarding
executable location or as full paths. Include no trailing slash.
In the case of a multi-configuration build, when CMAKE_INTDIR is
defined, the build-tree paths should be specified relative to the
directory above the executable (the one containing the
per-configuration subdirectory specified by CMAKE_INTDIR).
Additional paths may be specified in the PATH_BUILD and PATH_INSTALL
variables by using comma-separated strings. Paths pointing at build
trees should contain CMAKE_INTDIR as necessary. For example:
#if defined(CMAKE_INTDIR)
# define CONFIG_DIR "/" CMAKE_INTDIR
#else
# define CONFIG_DIR ""
#endif
#define @KWSYS_NAMESPACE@_SHARED_FORWARD_PATH_BUILD \
"." CONFIG_DIR, "/path/to/bar-build" CONFIG_DIR
#define @KWSYS_NAMESPACE@_SHARED_FORWARD_PATH_INSTALL \
"../lib/foo-1.2", "../lib/bar-4.5"
See the comments below for specific explanations of each macro.
*/
/*--------------------------------------------------------------------------*/
/* Configuration for this executable. Specify search and executable
paths relative to the forwarding executable location or as full
paths. Include no trailing slash. */
/* Full path to the directory in which this executable is built. Do
not include a trailing slash. */
@ -91,6 +112,15 @@
# undef KWSYS_SHARED_FORWARD_CONFIG_NAME
#endif
/* Create command line option to replace executable. */
#if defined(@KWSYS_NAMESPACE@_SHARED_FORWARD_OPTION_COMMAND)
# if !defined(KWSYS_SHARED_FORWARD_OPTION_COMMAND)
# define KWSYS_SHARED_FORWARD_OPTION_COMMAND @KWSYS_NAMESPACE@_SHARED_FORWARD_OPTION_COMMAND
# endif
#else
# undef KWSYS_SHARED_FORWARD_OPTION_COMMAND
#endif
/* Create command line option to print environment setting and exit. */
#if defined(@KWSYS_NAMESPACE@_SHARED_FORWARD_OPTION_PRINT)
# if !defined(KWSYS_SHARED_FORWARD_OPTION_PRINT)
@ -274,14 +304,6 @@ static void kwsys_shared_forward_strerror(char* message)
/*--------------------------------------------------------------------------*/
/* Functions to execute a child process. */
static void kwsys_shared_forward_execv(const char* cmd, char* const argv[])
{
#if defined(_MSC_VER)
_execv(cmd, argv);
#else
execv(cmd, argv);
#endif
}
static void kwsys_shared_forward_execvp(const char* cmd, char* const argv[])
{
#if defined(_MSC_VER)
@ -611,6 +633,27 @@ static int @KWSYS_NAMESPACE@_shared_forward_to_real(int argc, char** argv)
/* Store the environment variable. */
putenv(kwsys_shared_forward_ldpath);
#if defined(KWSYS_SHARED_FORWARD_OPTION_COMMAND)
/* Look for the command line replacement option. */
if(argc > 1 && strcmp(argv[1], KWSYS_SHARED_FORWARD_OPTION_COMMAND) == 0)
{
if(argc > 2)
{
/* Use the command line given. */
strcpy(exe, argv[2]);
argv += 2;
argc -= 2;
}
else
{
/* The option was not given an executable. */
fprintf(stderr, "Option " KWSYS_SHARED_FORWARD_OPTION_COMMAND
" must be followed by a command line.\n");
return 1;
}
}
#endif
#if defined(KWSYS_SHARED_FORWARD_OPTION_PRINT)
/* Look for the print command line option. */
if(argc > 1 && strcmp(argv[1], KWSYS_SHARED_FORWARD_OPTION_PRINT) == 0)
@ -644,7 +687,7 @@ static int @KWSYS_NAMESPACE@_shared_forward_to_real(int argc, char** argv)
/* Replace this process with the real executable. */
argv[0] = exe;
kwsys_shared_forward_execv(argv[0], argv);
kwsys_shared_forward_execvp(argv[0], argv);
/* Report why execution failed. */
kwsys_shared_forward_print_failure(argv);