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If we're on a DOS/W32/OS2 system and we're not using a unixy shell, don't

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follow POSIX backslash/newline conventions.

Use a different method for testing the SHELL variable, which hopefully
will work better on non-UNIX systems.
This commit is contained in:
Paul Smith 2005-08-25 04:40:10 +00:00
parent bf58e35105
commit 6636dc1d5c
4 changed files with 48 additions and 17 deletions
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7
ChangeLog
View File

@ -79,6 +79,13 @@
* make_msvc_net2003.vcproj, make_msvc_net2003.sln: MSVC Project files.
* Makefile.am (EXTRA_DIST): Add MSVC Project files.
2005-07-15 Paul Smith <psmith@gnu.org>
* job.c (construct_command_argv_internal) [DOS,WINDOWS32,OS/2]: If
we don't have a POSIX shell, then revert to the old
backslash-newline behavior (where they are stripped).
Fixes bug #13665.
2005-07-08 Paul D. Smith <psmith@gnu.org>
* config.h.W32.template: Reorder to match the standard config.h,

32
job.c
View File

@ -2408,8 +2408,15 @@ construct_command_argv_internal (char *line, char **restp, char *shell,
{
/* Backslash-newline is handled differently depending on what
kind of string we're in: inside single-quoted strings you
keep them; in double-quoted strings they disappear. */
if (instring == '"')
keep them; in double-quoted strings they disappear.
For DOS/Windows/OS2, if we don't have a POSIX shell,
we keep the pre-POSIX behavior of removing the
backslash-newline. */
if (instring == '"'
#if defined (__MSDOS__) || defined (__EMX__) || defined (WINDOWS32)
|| !unixy_shell
#endif
)
++p;
else
{
@ -2693,12 +2700,23 @@ construct_command_argv_internal (char *line, char **restp, char *shell,
}
else if (*p == '\\' && p[1] == '\n')
{
/* POSIX says we keep the backslash-newline, but throw out the
next char if it's a TAB. */
*(ap++) = '\\';
*(ap++) = *(p++);
*(ap++) = *p;
/* POSIX says we keep the backslash-newline, but throw out
the next char if it's a TAB. If we don't have a POSIX
shell on DOS/Windows/OS2, mimic the pre-POSIX behavior
and remove the backslash/newline. */
#if defined (__MSDOS__) || defined (__EMX__) || defined (WINDOWS32)
# define PRESERVE_BSNL unixy_shell
#else
# define PRESERVE_BSNL 1
#endif
if (PRESERVE_BSNL)
{
*(ap++) = '\\';
*(ap++) = '\\';
*(ap++) = '\n';
}
++p;
if (p[1] == '\t')
++p;

6
tests/ChangeLog
View File

@ -1,3 +1,9 @@
2005-08-25 Paul Smith <psmith@gnu.org>
* scripts/variables/SHELL: Use a /./ prefix instead of //: the
former works better with non-UNIX environments. Fixes Savannah
bug #14129.
2005-08-13 Boris Kolpackov <boris@kolpackov.net>
* scripts/functions/wildcard: Wrap calls to $(wildcard ) with

20
tests/scripts/variables/SHELL
View File

@ -19,23 +19,23 @@ run_make_test('all:;@echo "$(SHELL)"', '', $mshell);
# According to POSIX, any value of SHELL set in the makefile should _NOT_ be
# exported to the subshell! I wanted to set SHELL to be $^X (perl) in the
# makefile, but make runs $(SHELL) -c 'commandline' and that doesn't work at
# all when $(SHELL) is perl :-/. So, we just add an extra initial / and hope
# for the best on non-UNIX platforms :-/.
# all when $(SHELL) is perl :-/. So, we just add an extra initial /./ which
# works well on UNIX and seems to work OK on at least some non-UNIX systems.
$extraENV{SHELL} = $mshell;
run_make_test("SHELL := /$mshell\n".'
run_make_test("SHELL := /./$mshell\n".'
all:;@echo "$(SHELL) $$SHELL"
', '', "/$mshell $mshell");
', '', "/./$mshell $mshell");
# As a GNU make extension, if make's SHELL variable is explicitly exported,
# then we really _DO_ export it.
$extraENV{SHELL} = $mshell;
run_make_test("export SHELL := /$mshell\n".'
run_make_test("export SHELL := /./$mshell\n".'
all:;@echo "$(SHELL) $$SHELL"
', '', "/$mshell /$mshell");
', '', "/./$mshell /./$mshell");
# Test out setting of SHELL, both exported and not, as a target-specific
@ -43,14 +43,14 @@ all:;@echo "$(SHELL) $$SHELL"
$extraENV{SHELL} = $mshell;
run_make_test("all: SHELL := /$mshell\n".'
run_make_test("all: SHELL := /./$mshell\n".'
all:;@echo "$(SHELL) $$SHELL"
', '', "/$mshell $mshell");
', '', "/./$mshell $mshell");
$extraENV{SHELL} = $mshell;
run_make_test("all: export SHELL := /$mshell\n".'
run_make_test("all: export SHELL := /./$mshell\n".'
all:;@echo "$(SHELL) $$SHELL"
', '', "/$mshell $mshell");
', '', "/./$mshell $mshell");
1;