busybox-w32/testsuite, branch path_search

make: move test for complex chain of macro assignments

2024-06-01T10:07:44+00:00

The test 'Complex chain of macro assignments' relies on recursive macro expansion. This is a POSIX 202X feature, so the test should be moved to the appropriate section of the test script.

make: fix detection of target rules (take 2)

2024-05-31T09:27:18+00:00

Commit d6b764116 (make: fix detection of target rules) checked for target rules before macro assignments. This failed for some Makefiles generated by autotools because partially defined macros were expanded while testing for a target rule. Revert to checking for macro assignments first, but try to detect if the proposed left hand side of the assignment might form part of a target rule with an inline command. Also handle the case where the ';' separator of the inline command has been obfuscated by putting it in a macro. Saves 128-160 bytes. (GitHub pdpmake issues 31, 44)

make: allow :::= macro assignment on command line

2024-05-29T16:07:19+00:00

GNU make and bmake have different implementations for := macro assignment. In POSIX 202X these are supported by the forms ::= and :::= respectively. Only the former was supported on the pdpmake command line. Add the required support in process_macros() and update the usage message. Adds 48-64 bytes.

make: relax the test 'Return error if command fails'

2024-05-29T10:32:29+00:00

The test 'Return error if command fails' needed an exit code of 2. POSIX only requires an exit code greater than 0.

make: fixes to -q option

2024-05-28T11:22:54+00:00

The -q option returns an exit status to indicate if targets are up-to-date (0) or in need of updating (1) but without updating them. As an exception (imported from GNU make) build commands with a '+' prefix are executed. pdpmake didn't implement the exception. Doing so required moving handling of the -q option down into docmds(). Saves 48 bytes.

make: fixes to -t option

2024-05-28T10:54:51+00:00

The -t option (in general) causes targets to be touched instead of having build commands run to create them. There were two problems. The flag variable 'ssilent' in docmds was too small (uint8_t) to contain the value of 'dotouch' (uint32_t). Truncation of the value resulted in build commands being echoed when they shouldn't have been. The POSIX specification is unclear as to how build commands with a '+' prefix interact with touch. The rationale indicates that this feature was imported from GNU make, so the behaviour has been made to match what it does: if a '+' build command is run the target is not touched. The code has been rearranged to move the call to touch() up into docmds(). Adds 48 bytes.

make: fix tests for BSD

2024-05-24T11:57:43+00:00

A couple of tests require backslashes to be escaped. The test for CURDIR should use 'pwd -P' to resolve symlinks.

make: add support for ifeq/ifneq

2024-05-22T13:05:41+00:00

Add support for the conditional directives ifeq and ifneq. These follow GNU make in allowing things like: ifeq (arg1,arg2) ifeq 'arg1' 'arg2' In the second case single or double quotes may be used. Macros are expanded in the two arguments and the resulting strings are compared. Adds 240-248 bytes.

make: set $< and $* for target rules

2024-05-22T11:44:01+00:00

POSIX only requires $< and $* to be set for inference rules, not target rules. As an extension allow them to be set for target rules, as in GNU make. This may or may not be useful. In POSIX mode, when $< and $* are only set for inference rules, they're set to an empty string for target rules. This avoids the possibility of stale values being used. Adds 64-80 bytes. (GitHub issue #407)

make: add support for CURDIR macro

2024-05-22T07:58:13+00:00

Austin Group defect report 1626 introduced support for the CURDIR macro: https://www.austingroupbugs.net/view.php?id=1626 Implement this as a POSIX 202X feature. Adds 160-176 bytes.