$!------------------------------------------------------------------------------
$! make "PNG: The Definitive Guide" demo programs (for X) under OpenVMS
$!
$! Script created by Martin Zinser for libpng; modified by Greg Roelofs
$! for standalone pngbook source distribution.
$!
$!
$! Set locations where zlib and libpng sources live.
$!
$ zpath = ""
$ pngpath = ""
$!
$ if f$search("[---.zlib]zlib.h").nes."" then zpath = "[---.zlib]"
$ if f$search("[--]png.h").nes."" then pngpath = "[--]"
$!
$ if f$search("[-.zlib]zlib.h").nes."" then zpath = "[-.zlib]"
$ if f$search("[-.libpng]png.h").nes."" then pngpath = "[-.libpng]"
$!
$ if zpath .eqs. ""
$ then
$ write sys$output "zlib include not found. Exiting..."
$ exit 2
$ endif
$!
$ if pngpath .eqs. ""
$ then
$ write sys$output "libpng include not found. Exiting..."
$ exit 2
$ endif
$!
$! Look for the compiler used.
$!
$ ccopt="/include=(''zpath',''pngpath')"
$ if f$getsyi("HW_MODEL").ge.1024
$ then
$ ccopt = "/prefix=all"+ccopt
$ comp = "__decc__=1"
$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
$ else
$ if f$search("SYS$SYSTEM:DECC$COMPILER.EXE").eqs.""
$ then
$ if f$trnlnm("SYS").eqs."" then define sys sys$library:
$ if f$search("SYS$SYSTEM:VAXC.EXE").eqs.""
$ then
$ comp = "__gcc__=1"
$ CC :== GCC
$ else
$ comp = "__vaxc__=1"
$ endif
$ else
$ if f$trnlnm("SYS").eqs."" then define sys decc$library_include:
$ ccopt = "/decc/prefix=all"+ccopt
$ comp = "__decc__=1"
$ endif
$ endif
$ open/write lopt lib.opt
$ write lopt "''pngpath'libpng.olb/lib"
$ write lopt "''zpath'libz.olb/lib"
$ close lopt
$ open/write xopt x11.opt
$ write xopt "sys$library:decw$xlibshr.exe/share"
$ close xopt
$!
$! Build 'em.
$!
$ write sys$output "Compiling PNG book programs ..."
$ CALL MAKE readpng.OBJ "cc ''CCOPT' readpng" -
readpng.c readpng.h
$ CALL MAKE readpng2.OBJ "cc ''CCOPT' readpng2" -
readpng2.c readpng2.h
$ CALL MAKE writepng.OBJ "cc ''CCOPT' writepng" -
writepng.c writepng.h
$ write sys$output "Building rpng-x..."
$ CALL MAKE rpng-x.OBJ "cc ''CCOPT' rpng-x" -
rpng-x.c readpng.h
$ call make rpng-x.exe -
"LINK rpng-x,readpng,lib.opt/opt,x11.opt/opt" -
rpng-x.obj readpng.obj
$ write sys$output "Building rpng2-x..."
$ CALL MAKE rpng2-x.OBJ "cc ''CCOPT' rpng2-x" -
rpng2-x.c readpng2.h
$ call make rpng2-x.exe -
"LINK rpng2-x,readpng2,lib.opt/opt,x11.opt/opt" -
rpng2-x.obj readpng2.obj
$ write sys$output "Building wpng..."
$ CALL MAKE wpng.OBJ "cc ''CCOPT' wpng" -
wpng.c writepng.h
$ call make wpng.exe -
"LINK wpng,writepng,lib.opt/opt" -
wpng.obj writepng.obj
$ exit
$!
$!
$MAKE: SUBROUTINE !SUBROUTINE TO CHECK DEPENDENCIES
$ V = 'F$Verify(0)
$! P1 = What we are trying to make
$! P2 = Command to make it
$! P3 - P8 What it depends on
$
$ If F$Search(P1) .Eqs. "" Then Goto Makeit
$ Time = F$CvTime(F$File(P1,"RDT"))
$arg=3
$Loop:
$ Argument = P'arg
$ If Argument .Eqs. "" Then Goto Exit
$ El=0
$Loop2:
$ File = F$Element(El," ",Argument)
$ If File .Eqs. " " Then Goto Endl
$ AFile = ""
$Loop3:
$ OFile = AFile
$ AFile = F$Search(File)
$ If AFile .Eqs. "" .Or. AFile .Eqs. OFile Then Goto NextEl
$ If F$CvTime(F$File(AFile,"RDT")) .Ges. Time Then Goto Makeit
$ Goto Loop3
$NextEL:
$ El = El + 1
$ Goto Loop2
$EndL:
$ arg=arg+1
$ If arg .Le. 8 Then Goto Loop
$ Goto Exit
$
$Makeit:
$ VV=F$VERIFY(0)
$ write sys$output P2
$ 'P2
$ VV='F$Verify(VV)
$Exit:
$ If V Then Set Verify
$ENDSUBROUTINE