Update readme to reflect changes to min version + where gcc9 is found…

… + fix the utils checks for a compatible release

DidbsUtils.pm

@@ -88,8 +88,8 @@ sub compatibledidbscurrent
 	my($dirMajVer,$dirGenVer,$dirMinVer,$dirRest) =
 	    $dirBehindLink =~ m/(\d)_(\d)_(\d)[^_]*(_.+)/;
 	$verbose && didbsprint "Matched $dirMajVer $dirGenVer $dirMinVer $dirRest\n";
-	if( $dirRest == "_n32_mips3_mp" ) {
-	    $verbose && didbsprint "Elf width, ISA + compiler OK\n";
+	if( rindex($dirRest,"_n32_mips3_") == 0 ) {
+	    $verbose && didbsprint "Elf width, ISA OK\n";
 	    # Version check min is 0.1.7 (starting from 0.1.7)
 	    # due to the need for a particular didbs perl version.
 	    # max is current script minus one

README.md

@@ -16,30 +16,30 @@ Be aware - this build process will create the exact same content that may be fou
 * Roughly 20Gb diskspace
 * Minimum of ~2Gb of RAM
 * Beefy CPU if you want to build everything (2*600mhz min)
-* A previously extracted didbs release >= 0.1.6-n32-m3mp (n32, mips3, MIPSpro)
+* A previously extracted didbs release appropriate for your build >= 0.1.7-n32-m3gcc (n32, mips3, MIPSpro or gcc depending on taste)
 
 If you are looking for an already built didbs release - didbs releases are posted on the SGUG (Silicon Graphics User Group) forums in the development section [here](https://forums.sgi.sh/).
 
 Suggested approach:
 
 (1) Do everything as your user, I do not recommend use of root or installing into /usr/local or other existing directories. If you have to do things as root, I consider that a bug!
 
-(Example for n32, mips3, mipspro)
+(Example for n32, mips3, gcc)
 ```
 * As root
 * Create /usr/didbs
 * chown myuser:people /usr/didbs # (have to do this as root, of course)
 * As your user
 * Extract previous didbs release
-* cd /usr/didbs; tar xf usr-didbs-0.1.6-n32m3mp.tar.gz
+* cd /usr/didbs; tar xf usr-didbs-0.1.7-n32m3gcc.tar.gz
 * Link up a "current"
-* cd /usr/didbs; ln -s 0_1_6_n32_mips3_mp current
+* cd /usr/didbs; ln -s 0_1_7_n32_mips3_gcc current
 * (Setup paths to include the bin and lib32 of the above)
 * cd ~; git clone https://github.com/danielhams/didbs.git
 * cd ~/didbs
 * echo "DIDBS_JOBS=N" >overrideenv.vars
 * For above, set the DIDBS_JOBS to CPU+1, or just one if RAM is < 512Mb
-* ./bootstrap.pl -p /usr/didbs/0_1_package -b /usr/didbs/0_*_*_n32_mips3_mp_build -i /usr/didbs/0_*_*_n32_mips3_mp -e n32 -a mips3 -c mipspro # (replace * - this sets up paths)
+* ./bootstrap.pl -p /usr/didbs/0_1_package -b /usr/didbs/0_*_*_n32_mips3_gcc_build -i /usr/didbs/0_*_*_n32_mips3_gcc -e n32 -a mips3 -c gcc # (replace * - this sets up paths)
 * ./bootstrap.pl # (This builds the stage1 then release packages)
 ```
 
@@ -48,20 +48,11 @@ Suggested approach:
 You'll need to setup your environment to pull the right directories (bash example):
 
 ```
-* export PATH=/usr/didbs/0_*_*_n32_mips3_mp/bin:$PATH
-* export LD_LIBRARYN32_PATH=/usr/didbs/0_*_*_n32_mips3_mp/lib32:$LD_LIBRARYN32_PATH
-* export PKG_CONFIG_PATH=/usr/didbs/0_*_*_n32_mips3_mp/lib32/pkgconfig:$PKG_CONFIG_PATH
+* export PATH=/usr/didbs/0_*_*_n32_mips3_gcc/bin:$PATH
+* export LD_LIBRARYN32_PATH=/usr/didbs/0_*_*_n32_mips3_gcc/lib32:$LD_LIBRARYN32_PATH
+* export PKG_CONFIG_PATH=/usr/didbs/0_*_*_n32_mips3_gcc/lib32/pkgconfig:$PKG_CONFIG_PATH
 
-If you want to use the included gcc(4|5|8|9) - after building they may be found here (so add to PATH and LD_LIBRARYN32_PATH as well):
-
-gcc4 actual -> /usr/didbs/0_*_*_n32_mips3_mp/gbs4_2
-
-gcc5 actual -> /usr/didbs/0_*_*_n32_mips3_mp/gbs5_0
-(gcc5 is a special case, and requires the gcc4 paths afterwards to pick up the binutils/gdb there)
-
-gcc8 actual -> /usr/didbs/0_*_*_n32_mips3_mp/gbs8_1
-
-gcc9 actual -> /usr/didbs/0_*_*_n32_mips3_mp/gbs9_1
+GCC9 is now included within the regular `bin` and `lib32` directories - no additional PATH or LD_LIBRARYN32_PATH entries required.
 ```
 
 ## Troubleshooting
@@ -74,10 +65,7 @@ To find the mkheaders script a command like this (from /usr/didbs/current) will
 
 ```
 /usr/didbs/current $ find . -name mkheaders
-./gbs4_2/libexec/gcc/mips-sgi-irix6.5/4.8.2/install-tools/mkheaders
-./gbs5_0/libexec/gcc/mips-sgi-irix6.5/5.4.0/install-tools/mkheaders
-./gbs8_1/libexec/gcc/mips-sgi-irix6.5/8.2.0/install-tools/mkheaders
-./gbs9_1/libexec/gcc/mips-sgi-irix6.5/9.2.0/install-tools/mkheaders
+./libexec/gcc/mips-sgi-irix6.5/9.2.0/install-tools/mkheaders
 /usr/didbs/current $ 
 
 ```
@@ -103,6 +91,3 @@ Now move into the gcc version you want to update and run the mkheaders script fr
 
 
 eof
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