Fix configure script issue on Linux - no host_os_version.

Add help on building CUPS on Ubuntu - commands to get base dev packages.

diff --git a/INSTALL.md b/INSTALL.md
index 6acd9710c3b9c0d7985965e7aa278a9bd6f272e4..c21cd85f5b1ef241961e5c52560959cfbbeff61a 100644 (file)
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -30,6 +30,13 @@ Windows, and either MIT (1.6.3 or higher) or Heimdal Kerberos for Kerberos
 support.  CUPS will compile and run without these, however you'll miss out on
 many of the features provided by CUPS.
 
+On a stock Ubuntu install, the following command will install the required
+prerequisites:
+
+    sudo apt-get install autoconf build-essential libavahi-client-dev \
+         libgnutls28-dev libkrb5-dev libnss-mdns libpam-dev \
+         libsystemd-dev libusb-1.0-0-dev zlib1g-dev
+
 Also, please note that CUPS does not include print filters to support PDF or
 raster printing.  You *must* download GPL Ghostscript and/or the Open Printing
 CUPS filters package separately to print on operating systems other than macOS.

diff --git a/config-scripts/cups-opsys.m4 b/config-scripts/cups-opsys.m4
index 42fbe801b656cd20b4ca41c0eb8def749caca5ee..d85454783e7813a4088f93d21085469f3e3b0e3a 100644 (file)
--- a/config-scripts/cups-opsys.m4
+++ b/config-scripts/cups-opsys.m4
@@ -17,6 +17,10 @@ AC_CANONICAL_HOST
 
 [host_os_name=`echo $host_os | sed -e '1,$s/[0-9.]*$//g'`]
 [host_os_version=`echo $host_os | sed -e '1,$s/^[^0-9.]*//g' | awk -F. '{print $1 $2}'`]
+# Linux often does not yield an OS version we can use...
+if test "x$host_os_version" = x; then
+        host_os_version="0"
+fi
 
 if test "$host_os_name" = darwin -a $host_os_version -lt 120; then
         AC_MSG_ERROR([Sorry, this version of CUPS requires macOS 10.8 or higher.])

diff --git a/configure b/configure
index 5ebc81e7e4bd67f4f5b1566fce61e7708f180d08..74f67a5871e398d50e9cec65869d2218a2c1c2f1 100755 (executable)
--- a/configure
+++ b/configure
@@ -2637,6 +2637,12 @@ case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
 
 host_os_name=`echo $host_os | sed -e '1,$s/[0-9.]*$//g'`
 host_os_version=`echo $host_os | sed -e '1,$s/^[^0-9.]*//g' | awk -F. '{print $1 $2}'`
+if test "x$host_os_version" = x; then
+        host_os_version="0"
+fi
+echo "host_os=$host_os"
+echo "host_os_name=$host_os_name"
+echo "host_os_version=$host_os_version"
 
 if test "$host_os_name" = darwin -a $host_os_version -lt 120; then
         as_fn_error $? "Sorry, this version of CUPS requires macOS 10.8 or higher." "$LINENO" 5
@@ -9491,6 +9497,7 @@ fi
 if test "${with_bundledir+set}" = set; then :
   withval=$with_bundledir; CUPS_BUNDLEDIR="$withval"
 else
+  echo "host_os_version=$host_os_version"
   if test "x$host_os_name" = xdarwin -a $host_os_version -ge 100; then
                CUPS_BUNDLEDIR="/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A"
                LANGUAGES=""