Fix subtle problem with redirection in nt/configure.bat.

 nt/configure.bat (genmakefiles): Move the redirection away from the
 end of the command, to avoid excess whitespace at the end of Make
 variables created at configure time, and also avoid things like
 "FOO1>>config.settings", where "1" gets interpreted as the file
 descriptor and eaten up.  This fixes breakage introduced by the
 last change, without reintroducing the bug fixed by that change.

1 files changed, 23 insertions, 16 deletions

diff --git a/nt/configure.bat b/nt/configure.bat
index caee800bacf..91c5c3fa0bb 100755
--- a/nt/configure.bat
+++ b/nt/configure.bat
@@ -721,29 +721,36 @@ if %COMPILER% == gcc set MAKECMD=gmake
 if %COMPILER% == cl set MAKECMD=nmake

 

 rem   Pass on chosen settings to makefiles.

-rem   NB. Be very careful to not have a space before redirection symbols

-rem   except when there is a preceding digit, when a space is required.

 rem

+rem   The weird place we put the redirection is to make sure no extra

+rem   whitespace winds up at the end of the Make variables, since some

+rem   variables, e.g. INSTALL_DIR, cannot stand that.  Yes, echo will

+rem   write the blanks between the end of command arguments and the

+rem   redirection symbol to the file.  OTOH, we cannot put the

+rem   redirection immediately after the last character of the command,

+rem   because environment variable expansion can yield a digit there,

+rem   which will then be misinterpreted as the file descriptor to

+rem   redirect...

 echo # Start of settings from configure.bat >config.settings

-echo COMPILER=%COMPILER% >>config.settings

-if not "(%mf%)" == "()" echo MCPU_FLAG=%mf% >>config.settings

-if not "(%dbginfo%)" == "()" echo DEBUG_INFO=%dbginfo% >>config.settings

-if (%nodebug%) == (Y) echo NODEBUG=1 >>config.settings

-if (%noopt%) == (Y) echo NOOPT=1 >>config.settings

-if (%enablechecking%) == (Y) echo ENABLECHECKS=1 >>config.settings

-if (%profile%) == (Y) echo PROFILE=1 >>config.settings

-if (%nocygwin%) == (Y) echo NOCYGWIN=1 >>config.settings

-if not "(%prefix%)" == "()" echo INSTALL_DIR=%prefix% >>config.settings

-if not "(%distfiles%)" == "()" echo DIST_FILES=%distfiles% >>config.settings

+>>config.settings echo COMPILER=%COMPILER%

+if not "(%mf%)" == "()" >>config.settings echo MCPU_FLAG=%mf%

+if not "(%dbginfo%)" == "()" >>config.settings echo DEBUG_INFO=%dbginfo%

+if (%nodebug%) == (Y) >>config.settings echo NODEBUG=1

+if (%noopt%) == (Y) >>config.settings echo NOOPT=1

+if (%enablechecking%) == (Y) >>config.settings echo ENABLECHECKS=1

+if (%profile%) == (Y) >>config.settings echo PROFILE=1

+if (%nocygwin%) == (Y) >>config.settings echo NOCYGWIN=1

+if not "(%prefix%)" == "()" >>config.settings echo INSTALL_DIR=%prefix%

+if not "(%distfiles%)" == "()" >>config.settings echo DIST_FILES=%distfiles%

 rem We go thru docflags because usercflags could be "-DFOO=bar" -something

 rem and the if command cannot cope with this

 for %%v in (%usercflags%) do if not (%%v)==() set docflags=Y

-if (%docflags%)==(Y) echo USER_CFLAGS=%usercflags% >>config.settings

-if (%docflags%)==(Y) echo ESC_USER_CFLAGS=%escusercflags% >>config.settings

+if (%docflags%)==(Y) >>config.settings echo USER_CFLAGS=%usercflags%

+if (%docflags%)==(Y) >>config.settings echo ESC_USER_CFLAGS=%escusercflags%

 for %%v in (%userldflags%) do if not (%%v)==() set doldflags=Y

-if (%doldflags%)==(Y) echo USER_LDFLAGS=%userldflags% >>config.settings

+if (%doldflags%)==(Y) >>config.settings echo USER_LDFLAGS=%userldflags%

 for %%v in (%extrauserlibs%) do if not (%%v)==() set doextralibs=Y

-if (%doextralibs%)==(Y) echo USER_LIBS=%extrauserlibs% >>config.settings

+if (%doextralibs%)==(Y) >>config.settings echo USER_LIBS=%extrauserlibs%

 echo # End of settings from configure.bat>>config.settings

 echo. >>config.settings