diff options
Diffstat (limited to 'variable.c')
| -rw-r--r-- | variable.c | 32 |
1 files changed, 30 insertions, 2 deletions
@@ -1,5 +1,5 @@ /* Internals of variables for GNU Make. -Copyright (C) 1988, 89, 90, 91, 92, 93, 94 Free Software Foundation, Inc. +Copyright (C) 1988, 89, 90, 91, 92, 93, 94, 96 Free Software Foundation, Inc. This file is part of GNU Make. GNU Make is free software; you can redistribute it and/or modify @@ -366,7 +366,7 @@ define_automatic_variables () ? "" : remote_description); (void) define_variable ("MAKE_VERSION", 12, buf, o_default, 0); - + /* This won't override any definition, but it will provide one if there isn't one there. */ v = define_variable ("SHELL", 5, default_shell, o_default, 0); @@ -611,6 +611,34 @@ try_variable_definition (filename, lineno, line, origin) flavor = append; break; } + else if (c == '$') + { + /* This might begin a variable expansion reference. Make sure we + don't misrecognize chars inside the reference as =, := or +=. */ + char closeparen; + int count; + c = *p++; + if (c == '(') + closeparen = ')'; + else if (c == '{') + closeparen = '}'; + else + continue; /* Nope. */ + + /* P now points past the opening paren or brace. + Count parens or braces until it is matched. */ + count = 0; + for (; *p != '\0'; ++p) + { + if (*p == c) + ++count; + else if (*p == closeparen && --count < 0) + { + ++p; + break; + } + } + } } beg = next_token (line); |