Here is a summary of our experience building COIN on a 64-bit HP server, running HP-Unix version B.11.00,
using the native C++ compiler, aCC version 3.35.

We found out that the system make (/usr/bin/make) cannot compile the Makefiles, because they feature
syntax it does not support. To make the files compile, we ported over GNU Make 3.80. An older version
(3.74) also works.

To build COIN, we had to modify some of the COIN Makefiles, to make them work with aCC. Here is what we
changed, in descending order of severity (from bug down to option):

1. In the file Makefiles/Makefile.location, we changed the library name suffixes from .so (Solaris
platform) to .sl, which designates HP. In detail:
    export CoinLibName := libCoin.sl
    export OsiLibName := libOsi.sl
    export CglLibName := libCgl.sl
    export VolLibName := libVol.sl
    export OsiVolLibName := libOsiVol.sl
    export ClpLibName := libClp.sl
    export OsiClpLibName := libOsiClp.sl
    export SbbLibName := libSbb.sl
    export CbcLibName := libCbc.sl
    export OsiCpxLibName := libOsiCpx.sl
    export OsiDylpLibName := libOsiDylp.sl
    export OsiGlpkLibName := libOsiGlpk.sl
    export OsiMskLibName := libOsiMsk.sl
    export OslLibName := libosl.sl
    export OsiOslLibName := libOsiOsl.sl
    export OslSeLibName := liboslse.sl
    export SmiLibName := libSmi.sl
    export OsiSpxLibName := libOsiSpx.sl
    export SymLibName := libsym.sl
    export OsiSymLibName := libOsiSym.sl
    export OsiXprLibName := libOsiXpr.sl
    export zlibLibName := libz.sl
    export bzlibLibName := libbz2.sl
    export lapackLibName := liblapack.sl libblas.sl libg2c.sl
    export readlineLibName := libhistory.sl libreadline.sl libcurses.s.sl readlineDefine := COIN_USE_READLINE


2. In the file Makefiles/Makefile.HP-UX, change the library suffixes to .sl, and also add compilation and
linkage options commonly used. The block of code now reads:

ifeq ($(HP-UX_PROGENV),HPaCC)
    SHLINKPREFIX :=
    SYSLD +=
    STATICSYSLD += -Bstatic
    ifeq (${LibType},SHARED)
        LD  := $(CXX) -o
        LIBEXT := .sl
        CXXFLAGS += +Z +DA2.0W -D_HPUX_11 -D_REENTRANT
-DRWSTD_MULTI_THREADED -D_THREAD_SAFE
        LIBLDFLAGS=-b +DA2.0W -Wl,+s,+n,-B,immediate,-B,nonfatal
-D_REENTRANT -DRWSTD_MULTI_THREADED -D_THREAD_SAFE

+DA2.0W  builds for 64-bit. For 32-bit, use +DAportable instead. We switched off debug flags -DDEBUG
-D_DEBUG, because the DEBUG flag on switches on the following block of code in the file
COIN/Clp/Idiot.cpp, at lines 610 to 616:

#ifdef DEBUG
        for (i=0;i<ncols;i++) {
          int j;
          trueCost+=cost[i]*colsol[i];
        }
        printf("True objective %g\n",trueCost-offset);
#endif

This block breaks the compilation, because the variable trueCost has not been defined before. So, either
this block has to be removed, or the DEBUG flag must be switched off, or the code must be patched.

3. In the file /COIN/Clp/include/ClpDynamicMatrix.hpp the last comma from the enum DynamicStatus has to be
removed. The corrected lines read:

class ClpDynamicMatrix : public ClpPackedMatrix {

public:
/// enums for status of various sorts
enum DynamicStatus {
soloKey = 0x00,
inSmall = 0x01,
atUpperBound = 0x02,
atLowerBound = 0x03
};

4. In several Makefiles, such as Clp/Makefile.Clp, Osi/Makefile.Osi and Coin/Makefile, the OptLevel should
not be set as suggested, for example as OptLevel := -O1, because   aCC parses successfully -O as a valid
option (it invokes level 2 optimization), and then it complains that “1” is an unsupported option.

5. In the file Makefiles/Makefile.rules, we removed the leading @ in front of the compilation directives,
so we can see exactly what options and paths are invoked during each compilation. The lines now read:
$(CXX) $(CXXFLAGS) -c $< -o $@
$(CC) $(CXXFLAGS) -c $< -o $@

If we needed to also make the component requiring the Fortran compiler, we could also remove the leading @
from the following line
 @$(FF) $(FFFLAGS) -c $< -o $@

6. In the file Makefiles/Makefile.lib, we removed the leading @ in front of the linker directives, so we
can see exactly what options and paths are invoked during each linkage. The line now reads:
$(LD) $@ $(LIBLDFLAGS) $(LIBOBJ)



Spyros Kontogiorgis
Armand Zakarian
Madhu Kuriti

Delta Airlines Technology