Fix minor bugs in configure.ac and awkgram.y.

7 files changed, 394 insertions, 404 deletions

diff --git a/ChangeLog b/ChangeLog
index 2b17e4f7..fb1b247e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2012-03-27         Andrew J. Schorr     <aschorr@telemetry-investments.com>
+
+	* TODO.xgawk: Update to reflect debate about how to support Cygwin
+	and other platforms that cannot link shared libraries with unresolved
+	references.
+	* awkgram.y (add_srcfile): Minor bug fix: reverse sense of test
+	added by Arnold in last patch.
+	* configure.ac: AC_DISABLE_STATIC must come before AC_PROG_LIBTOOL.
+
 2012-03-26         Arnold D. Robbins     <arnold@skeeve.com>
 
 	Some cleanups.
diff --git a/TODO.xgawk b/TODO.xgawk
index 0e30165c..0198a451 100644
--- a/TODO.xgawk
+++ b/TODO.xgawk
@@ -16,8 +16,17 @@ Done:
 
 To do (not necessarily in this order):
 
-- Fix Makefile.am to build gawk as a stub calling into a shared library.
-  This will allow extensions to work on Cygwin and Mingw.
+- Figure out how to support xgawk on platforms such as Cygwin where a DLL
+  cannot be linked with unresolved references.  There are currently 3
+  possible solutions:
+    1. Restructure gawk as a stub calling into a shared library.
+    2. Move a subset of gawk interfaces into a shared library that can be
+       called by extensions.
+    3. Change the interface between gawk and extensions so that gawk will
+       pass a pointer to a structure into dlload that contains the addresses
+       of all variables and functions to which the extension may need access.
+
+- Add valgrind-noleak target.
 
 - Enable default ".awk" search in io.c:find_source().  The simple change
   is to add this code inline in io.c:
diff --git a/awkgram.c b/awkgram.c
index 76543706..5a92e8d4 100644
--- a/awkgram.c
+++ b/awkgram.c
@@ -5009,7 +5009,7 @@ add_srcfile(int stype, char *src, SRCFILE *thisfile, int *already_included, int
 			return NULL;
 		}
 		/* use full messages to ease translation */
-		fatal(stype == SRC_EXTLIB
+		fatal(stype != SRC_EXTLIB
 			? _("can't open source file `%s' for reading (%s)")
 			: _("can't open shared library `%s' for reading (%s)"),
 				src,
diff --git a/awkgram.y b/awkgram.y
index 18e758f9..fb394600 100644
--- a/awkgram.y
+++ b/awkgram.y
@@ -2289,7 +2289,7 @@ add_srcfile(int stype, char *src, SRCFILE *thisfile, int *already_included, int
 			return NULL;
 		}
 		/* use full messages to ease translation */
-		fatal(stype == SRC_EXTLIB
+		fatal(stype != SRC_EXTLIB
 			? _("can't open source file `%s' for reading (%s)")
 			: _("can't open shared library `%s' for reading (%s)"),
 				src,
diff --git a/configure b/configure
index 47bf2864..88f43b1e 100755
--- a/configure
+++ b/configure
@@ -12666,34 +12666,6 @@ CC="$lt_save_CC"
 # Only expand once:
 
 
-# Check whether --enable-static was given.
-if test "${enable_static+set}" = set; then :
-  enableval=$enable_static; p=${PACKAGE-default}
-    case $enableval in
-    yes) enable_static=yes ;;
-    no) enable_static=no ;;
-    *)
-     enable_static=no
-      # Look at the argument we got.  We use all the common list separators.
-      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
-      for pkg in $enableval; do
-	IFS="$lt_save_ifs"
-	if test "X$pkg" = "X$p"; then
-	  enable_static=yes
-	fi
-      done
-      IFS="$lt_save_ifs"
-      ;;
-    esac
-else
-  enable_static=no
-fi
-
-
-
-
-
-
 
 
 
diff --git a/configure.ac b/configure.ac
index 3b4e6fbe..260f0dfa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -69,7 +69,6 @@ AC_PROG_CC
 AC_PROG_CPP
 AC_DISABLE_STATIC
 AC_PROG_LIBTOOL
-AC_DISABLE_STATIC
 
 AC_OBJEXT
 AC_EXEEXT
diff --git a/doc/gawk.info b/doc/gawk.info
index 7a7ce302..8e27f4a3 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -3332,7 +3332,7 @@ Class       Meaning
 `[:upper:]' Uppercase alphabetic characters.
 `[:xdigit:]'Characters that are hexadecimal digits.
 
-Table 3.1: POSIX Character Classes
+Table    3.1: POSIX Character Classes
 
    For example, before the POSIX standard, you had to write
 `/[A-Za-z0-9]/' to match alphanumeric characters.  If your character
@@ -5295,7 +5295,7 @@ COMMAND `|& getline'     Sets `$0' and `NF'          Extension
 COMMAND `|& getline'     Sets VAR                    Extension
 VAR                                                  
 
-Table 4.1: getline Variants and What They Set
+Table    4.1: getline Variants and What They Set
 
 
 File: gawk.info,  Node: Read Timeout,  Next: Command line directories,  Prev: Getline,  Up: Reading Files
@@ -6963,7 +6963,7 @@ Feature     Default        `--posix' or `--use-lc-numeric'
 Input       Use period     Use locale
 `strtonum()'Use period     Use locale
 
-Table 6.1: Locale Decimal Point versus A Period
+Table    6.1: Locale Decimal Point versus A Period
 
    Finally, modern day formal standards and IEEE standard floating point
 representation can have an unusual but important effect on the way
@@ -7305,7 +7305,7 @@ LVALUE `%=' MODULUS    Sets LVALUE to its remainder by MODULUS.
 LVALUE `^=' POWER      
 LVALUE `**=' POWER     Raises LVALUE to the power POWER. (c.e.)
 
-Table 6.2: Arithmetic Assignment Operators
+Table    6.2: Arithmetic Assignment Operators
 
      NOTE: Only the `^=' operator is specified by POSIX.  For maximum
      portability, do not use the `**=' operator.
@@ -7610,7 +7610,7 @@ X `!~' Y           True if the string X does not match the regexp
 SUBSCRIPT `in'     True if the array ARRAY has an element with the
 ARRAY              subscript SUBSCRIPT.
 
-Table 6.3: Relational Operators
+Table    6.3: Relational Operators
 
    Comparison expressions have the value one if true and zero if false.
 When comparing operands of mixed types, numeric operands are converted
@@ -11421,7 +11421,7 @@ is illustrated in *note table-sub-escapes::.
      `\\\\\\&'           `\\\&'            a literal `\\&'
          `\\q'             `\q'            a literal `\q'
 
-Table 9.1: Historical Escape Sequence Processing for `sub()' and
+Table    9.1: Historical Escape Sequence Processing for `sub()' and
 `gsub()'
 
 This table shows both the lexical-level processing, where an odd number
@@ -11446,7 +11446,8 @@ literally.  The interpretation of `\' and `&' then becomes as shown in
        `\\\\&'            `\\&'            a literal `\', then the matched text
      `\\\\\\&'           `\\\&'            a literal `\&'
 
-Table 9.2: 1992 POSIX Rules for sub and gsub Escape Sequence Processing
+Table    9.2: 1992 POSIX Rules for sub and gsub Escape Sequence
+Processing
 
 This appears to solve the problem.  Unfortunately, the phrasing of the
 standard is unusual. It says, in effect, that `\' turns off the special
@@ -11475,7 +11476,7 @@ table-sub-proposed::.
          `\\q'             `\q'            a literal `\q'
         `\\\\'             `\\'            `\\'
 
-Table 9.3: Proposed rules for sub and backslash
+Table    9.3: Proposed rules for sub and backslash
 
    In a nutshell, at the runtime level, there are now three special
 sequences of characters (`\\\&', `\\&' and `\&') whereas historically
@@ -11502,7 +11503,7 @@ rules are presented in *note table-posix-sub::.
          `\\q'             `\q'            a literal `\q'
         `\\\\'             `\\'            `\'
 
-Table 9.4: POSIX rules for `sub()' and `gsub()'
+Table    9.4: POSIX rules for `sub()' and `gsub()'
 
    The only case where the difference is noticeable is the last one:
 `\\\\' is seen as `\\' and produces `\' instead of `\\'.
@@ -11534,7 +11535,7 @@ the `\' does not, as shown in *note table-gensub-escapes::.
      `\\\\\\&'                 `\\\&'            a literal `\&'
          `\\q'                   `\q'            a literal `q'
 
-Table 9.5: Escape Sequence Processing for `gensub()'
+Table    9.5: Escape Sequence Processing for `gensub()'
 
    Because of the complexity of the lexical and runtime level processing
 and the special cases for `sub()' and `gsub()', we recommend the use of
@@ -12083,7 +12084,7 @@ table-bitwise-ops::.
          0     | 0   0 | 0   1 | 0   1
          1     | 0   1 | 1   1 | 1   0
 
-Table 9.6: Bitwise Operations
+Table    9.6: Bitwise Operations
 
    As you can see, the result of an AND operation is 1 only when _both_
 bits are 1.  The result of an OR operation is 1 if _either_ bit is 1.
@@ -24911,7 +24912,7 @@ Index
 * * (asterisk), * operator, as regexp operator: Regexp Operators.
                                                               (line  87)
 * * (asterisk), * operator, null strings, matching: Gory Details.
-                                                              (line 164)
+                                                              (line 165)
 * * (asterisk), ** operator <1>:         Precedence.          (line  49)
 * * (asterisk), ** operator:             Arithmetic Ops.      (line  81)
 * * (asterisk), **= operator <1>:        Precedence.          (line  95)
@@ -25154,7 +25155,7 @@ Index
                                                               (line  23)
 * advanced features, network connections, See Also networks, connections: Advanced Features.
                                                               (line   6)
-* advanced features, null strings, matching: Gory Details.    (line 164)
+* advanced features, null strings, matching: Gory Details.    (line 165)
 * advanced features, operators, precedence: Increment Ops.    (line  61)
 * advanced features, piping into sh:     Redirection.         (line 143)
 * advanced features, regexp constants:   Assignment Ops.      (line 148)
@@ -25251,7 +25252,7 @@ Index
 * asterisk (*), * operator, as regexp operator: Regexp Operators.
                                                               (line  87)
 * asterisk (*), * operator, null strings, matching: Gory Details.
-                                                              (line 164)
+                                                              (line 165)
 * asterisk (*), ** operator <1>:         Precedence.          (line  49)
 * asterisk (*), ** operator:             Arithmetic Ops.      (line  81)
 * asterisk (*), **= operator <1>:        Precedence.          (line  95)
@@ -26683,7 +26684,7 @@ Index
 * matching, expressions, See comparison expressions: Typing and Comparison.
                                                               (line   9)
 * matching, leftmost longest:            Multiple Line.       (line  26)
-* matching, null strings:                Gory Details.        (line 164)
+* matching, null strings:                Gory Details.        (line 165)
 * mawk program:                          Other Versions.      (line  35)
 * McPhee, Patrick:                       Contributors.        (line 100)
 * memory, releasing:                     Internals.           (line  92)
@@ -26764,7 +26765,7 @@ Index
 * null strings, as array subscripts:     Uninitialized Subscripts.
                                                               (line  43)
 * null strings, converting numbers to strings: Conversion.    (line  21)
-* null strings, matching:                Gory Details.        (line 164)
+* null strings, matching:                Gory Details.        (line 165)
 * null strings, quoting and:             Quoting.             (line  62)
 * number sign (#), #! (executable scripts): Executable Scripts.
                                                               (line   6)
@@ -27725,360 +27726,360 @@ Ref: Regexp Operators-Footnote-1146922
 Ref: Regexp Operators-Footnote-2147069
 Node: Bracket Expressions147167
 Ref: table-char-classes149057
-Node: GNU Regexp Operators151580
-Node: Case-sensitivity155303
-Ref: Case-sensitivity-Footnote-1158271
-Ref: Case-sensitivity-Footnote-2158506
-Node: Leftmost Longest158614
-Node: Computed Regexps159815
-Node: Reading Files163225
-Node: Records165229
-Ref: Records-Footnote-1173903
-Node: Fields173940
-Ref: Fields-Footnote-1176973
-Node: Nonconstant Fields177059
-Node: Changing Fields179261
-Node: Field Separators185242
-Node: Default Field Splitting187871
-Node: Regexp Field Splitting188988
-Node: Single Character Fields192330
-Node: Command Line Field Separator193389
-Node: Field Splitting Summary196830
-Ref: Field Splitting Summary-Footnote-1200022
-Node: Constant Size200123
-Node: Splitting By Content204707
-Ref: Splitting By Content-Footnote-1208433
-Node: Multiple Line208473
-Ref: Multiple Line-Footnote-1214320
-Node: Getline214499
-Node: Plain Getline216715
-Node: Getline/Variable218804
-Node: Getline/File219945
-Node: Getline/Variable/File221267
-Ref: Getline/Variable/File-Footnote-1222866
-Node: Getline/Pipe222953
-Node: Getline/Variable/Pipe225513
-Node: Getline/Coprocess226620
-Node: Getline/Variable/Coprocess227863
-Node: Getline Notes228577
-Node: Getline Summary230519
-Ref: table-getline-variants230862
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-Ref: Read Timeout-Footnote-1235463
-Node: Command line directories235520
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-Ref: Close Files And Pipes-Footnote-2280034
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-Node: Constants281992
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-Node: Truth Values317659
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-Ref: Basic High Level-Footnote-1909459
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-Node: Floating Point Issues914169
-Node: String Conversion Precision915252
-Ref: String Conversion Precision-Footnote-1916952
-Node: Unexpected Results917061
-Node: POSIX Floating Point Problems918887
-Ref: POSIX Floating Point Problems-Footnote-1922592
-Node: Glossary922630
-Node: Copying947606
-Node: GNU Free Documentation License985163
-Node: Index1010300
+Node: GNU Regexp Operators151583
+Node: Case-sensitivity155306
+Ref: Case-sensitivity-Footnote-1158274
+Ref: Case-sensitivity-Footnote-2158509
+Node: Leftmost Longest158617
+Node: Computed Regexps159818
+Node: Reading Files163228
+Node: Records165232
+Ref: Records-Footnote-1173906
+Node: Fields173943
+Ref: Fields-Footnote-1176976
+Node: Nonconstant Fields177062
+Node: Changing Fields179264
+Node: Field Separators185245
+Node: Default Field Splitting187874
+Node: Regexp Field Splitting188991
+Node: Single Character Fields192333
+Node: Command Line Field Separator193392
+Node: Field Splitting Summary196833
+Ref: Field Splitting Summary-Footnote-1200025
+Node: Constant Size200126
+Node: Splitting By Content204710
+Ref: Splitting By Content-Footnote-1208436
+Node: Multiple Line208476
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 End Tag Table