syrooting: remove two useless checks.

* txr.c (sysroot_init): The value of TXR_REL_PATH
already has the exe suffix on it if we are building
for Windows. There is no need to try with EXE_SUFF
tacked on to it. There is also no need to try PROG_NAME
with or without the suffix. EXE_SUFF is the empty
string on non-Windows platforms, so the two lines of
code are equivalent. On Windows, PROG_NAME without
the EXE_SUFF will not match; that maybe_sysroot call
is a waste of CPU cycles.

1 files changed, 0 insertions, 2 deletions

diff --git a/txr.c b/txr.c
index 36750a8e..8fab8eae 100644
--- a/txr.c
+++ b/txr.c
@@ -335,10 +335,8 @@ static void sysroot_init(void)
     prog_dir = scat3(prog_dir, chr(psc[0]), null_string);
 
   if (!(maybe_sysroot(lit(TXR_REL_PATH)) ||
-        maybe_sysroot(lit(TXR_REL_PATH EXE_SUFF)) ||
         maybe_sysroot(substitute_basename(lit(TXR_REL_PATH), prog_path)) ||
         (share_txr_stdlib = 0) ||
-        maybe_sysroot(lit(PROG_NAME)) ||
         maybe_sysroot(lit(PROG_NAME EXE_SUFF))))
   {
     sysroot_path = prog_dir;