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ruby-runner.h

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* template/ruby-runner.h.in: separate configured part from
  ruby-runner.c.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54572 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-04-14 01:30:12 +00:00
parent 1a88b871d1
commit 7343b492a2
4 changed files with 8 additions and 7 deletions
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35
ruby-runner.c Normal file
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@ -0,0 +1,35 @@
#define _POSIX_C_SOURCE 200809L
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "ruby-runner.h"
#define STRINGIZE(expr) STRINGIZE0(expr)
#define STRINGIZE0(expr) #expr
int
main(int argc, char **argv)
{
static const char builddir[] = BUILDDIR;
const char *libpath = getenv(LIBPATHENV);
char c = 0;
if (libpath) {
while ((c = *libpath) == PATH_SEP) ++libpath;
}
if (c) {
size_t n = strlen(libpath);
char *e = malloc(sizeof(builddir)+n+1);
memcpy(e, builddir, sizeof(builddir)-1);
e[sizeof(builddir)-1] = PATH_SEP;
memcpy(e+sizeof(builddir), libpath, n+1);
libpath = e;
}
else {
libpath = builddir;
}
setenv(LIBPATHENV, libpath, 1);
execv(BUILDDIR"/"STRINGIZE(RUBY_INSTALL_NAME), argv);
return -1;
}