postgres.git / summary / log / commit / refs

commit    28e02b8fde7356fb917e36a20d9ddeb19aded53a
Author:   Tom Lane <tgl@sss.pgh.pa.us>
Date:     Mon May 02 15:18:11 2016 +0000
First released in: 9.6.0, 9.1.22, 9.2.17, 9.3.13, 9.4.8, 9.5.3

    Fix configure's incorrect version tests for flex and perl.
    
    awk's equality-comparison operator is "==" not "=".  We got this right
    in many places, but not in configure's checks for supported version
    numbers of flex and perl.  It hadn't been noticed because unsupported
    versions are so old as to be basically extinct in the wild, and because
    the only consequence is whether or not a WARNING flies by during
    configure.
    
    Daniel Gustafsson noted the problem with respect to the test for flex,
    I found the other by reviewing other awk calls.


 config/perl.m4     | 2 +-
 config/programs.m4 | 2 +-
 configure          | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/config/perl.m4 b/config/perl.m4
index d602a5bb1b0..48ae2703b48 100644
--- a/config/perl.m4
+++ b/config/perl.m4
@@ -13,7 +13,7 @@ if test "$PERL"; then
   pgac_perl_version=`$PERL -v 2>/dev/null | sed -n ['s/This is perl.*v[a-z ]*\([0-9]\.[0-9][0-9.]*\).*$/\1/p']`
   AC_MSG_NOTICE([using perl $pgac_perl_version])
   if echo "$pgac_perl_version" | sed ['s/[.a-z_]/ /g'] | \
-    $AWK '{ if ([$]1 = 5 && [$]2 >= 8) exit 1; else exit 0;}'
+    $AWK '{ if ([$]1 == 5 && [$]2 >= 8) exit 1; else exit 0;}'
   then
     AC_MSG_WARN([
 *** The installed version of Perl, $PERL, is too old to use with PostgreSQL.
diff --git a/config/programs.m4 b/config/programs.m4
index 57bbe962c39..c9f0740800a 100644
--- a/config/programs.m4
+++ b/config/programs.m4
@@ -69,7 +69,7 @@ else
         echo '%%'  > conftest.l
         if $pgac_candidate -t conftest.l 2>/dev/null | grep FLEX_SCANNER >/dev/null 2>&1; then
           pgac_flex_version=`$pgac_candidate --version 2>/dev/null`
-          if echo "$pgac_flex_version" | sed ['s/[.a-z]/ /g'] | $AWK '{ if ([$]1 = 2 && ([$]2 > 5 || ([$]2 = 5 && [$]3 >= 31))) exit 0; else exit 1;}'
+          if echo "$pgac_flex_version" | sed ['s/[.a-z]/ /g'] | $AWK '{ if ([$]1 == 2 && ([$]2 > 5 || ([$]2 == 5 && [$]3 >= 31))) exit 0; else exit 1;}'
           then
             pgac_cv_path_flex=$pgac_candidate
             break 2
diff --git a/configure b/configure
index e9b3975da9a..2d67fadd07a 100755
--- a/configure
+++ b/configure
@@ -7164,7 +7164,7 @@ else
         echo '%%'  > conftest.l
         if $pgac_candidate -t conftest.l 2>/dev/null | grep FLEX_SCANNER >/dev/null 2>&1; then
           pgac_flex_version=`$pgac_candidate --version 2>/dev/null`
-          if echo "$pgac_flex_version" | sed 's/[.a-z]/ /g' | $AWK '{ if ($1 = 2 && ($2 > 5 || ($2 = 5 && $3 >= 31))) exit 0; else exit 1;}'
+          if echo "$pgac_flex_version" | sed 's/[.a-z]/ /g' | $AWK '{ if ($1 == 2 && ($2 > 5 || ($2 == 5 && $3 >= 31))) exit 0; else exit 1;}'
           then
             pgac_cv_path_flex=$pgac_candidate
             break 2
@@ -7262,7 +7262,7 @@ if test "$PERL"; then
   { $as_echo "$as_me:$LINENO: using perl $pgac_perl_version" >&5
 $as_echo "$as_me: using perl $pgac_perl_version" >&6;}
   if echo "$pgac_perl_version" | sed 's/[.a-z_]/ /g' | \
-    $AWK '{ if ($1 = 5 && $2 >= 8) exit 1; else exit 0;}'
+    $AWK '{ if ($1 == 5 && $2 >= 8) exit 1; else exit 0;}'
   then
     { $as_echo "$as_me:$LINENO: WARNING:
 *** The installed version of Perl, $PERL, is too old to use with PostgreSQL.


[parent: 7ee15c05d2fb]