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+1999-08-13 Paul D. Smith <psmith@gnu.org>
+
+ * function.c (func_if): New function $(if ...) based on the
+ original by Han-Wen but reworked quite a bit.
+ (function_table): Add it.
+ * NEWS: Introduce it.
+ * make.texinfo (If Function): Document it.
+
+ * job.c (free_job_token): Check for EINTR when writing tokens to
+ the jobserver pipe.
+
+1999-08-12 Paul D. Smith <psmith@gnu.org>
+
+ Argh. Another jobserver algorithm change. We conveniently forgot
+ that the blocking bit is shared by all users of the pipe, it's not
+ a per-process setting. Since we have many make processes all
+ sharing the pipe we can't use the blocking bit as a signal handler
+ flag. Instead, we'll dup the pipe's read FD and have the SIGCHLD
+ handler close the dup'd FD. This will cause the read() to fail
+ with EBADF the next time we invoke it, so we know we need to reap
+ children. We then re-dup and reap.
+
+ * main.c (main): Define the job_rfd variable to hold the dup'd FD.
+ Actually dup the read side of the pipe. Don't bother setting the
+ blocking bit on the file descriptor.
+ * make.h: Declare the job_rfd variable.
+ * job.c (child_handler): If the dup'd jobserver pipe is open,
+ close it and assign -1 to job_rfd to notify the main program that
+ we got a SIGCHLD.
+ (start_job_command): Close the dup'd FD before exec'ing children.
+ Since we open and close this thing so often it doesn't seem
+ worth it to use the close-on-exec bit.
+ (new_job): Remove code for testing/setting the blocking bit.
+ Instead of EAGAIN, test for EBADF. If the dup'd FD has been
+ closed, re-dup it before we reap children.
+
+ * function.c (func_shell): Be a little more accurate about the
+ length of the error string to allocate.
+
+ * expand.c (variable_expand_for_file): If there's no filenm info
+ (say, from a builtin command) then reset reading_file to 0.
+
1999-08-09 Paul D. Smith <psmith@gnu.org>
* maintMakefile: Use g in sed (s///g) to replace >1 variable per
line.
- * Makefile.DOS.template: Fix mostlyclean-aminfo to remove the
- right stuff.
+ * Makefile.DOS.template [__MSDOS__]: Fix mostlyclean-aminfo to
+ remove the right files.
1999-08-01 Eli Zaretskii <eliz@is.elta.co.il>
- * function.c (msdos_openpipe): *Really* return a FILE ptr.
+ * function.c (msdos_openpipe) [__MSDOS__]: *Really* return a FILE
+ ptr.
1999-08-01 Paul D. Smith <psmith@gnu.org>