[Cbc-tickets] [COIN-OR Branch-and-Cut MIP Solver] #176: COIN-OR Cbc FTBFS on mips* platforms due to variable name conflict

[COIN-OR Branch-and-Cut MIP Solver]

#176: COIN-OR Cbc FTBFS on mips* platforms due to variable name conflict
----------------------+-----------------
Reporter:  lmy441900  |      Owner:  tkr
    Type:  task       |     Status:  new
Priority:  critical   |  Component:  Cbc
 Version:  2.9.8      |   Keywords:
----------------------+-----------------
 When compiling cbc 2.9.8 on Linux mips* platforms, an error will be
 triggered:

 {{{
  g++ -DHAVE_CONFIG_H -I. -I. -I../src -I/usr/include/coin
 -I/usr/include/coin/ -DCOIN_NO_CLP_MESSAGE -DUSE_CBCCONFIG
 -D_FORTIFY_SOURCE=2 -pipe -Wno-error -fstack-protector-strong --param=ssp-
 buffer-size=4 -fomit-frame-pointer -O3 -mabi=64 -march=mips64r2
 -mtune=loongson3a -fira-loop-pressure -fira-hoist-pressure -ftree-
 vectorize -specs=/usr/lib/autobuild3/specs/hardened-cc1 -fpermissive
 -fdeclone-ctor-dtor -ftree-vectorize -DCBC_BUILD -MT CbcBranchDynamic.lo
 -MD -MP -MF .deps/CbcBranchDynamic.Tpo -c CbcBranchDynamic.cpp  -fPIC
 -DPIC -o .libs/CbcBranchDynamic.o
 CbcModel.hpp:2397:78: error: expected ',' or '...' before numeric constant
      void setMIPStart( const std::vector< std::pair< std::string, double >
 > &mips ) {
 ^
 CbcModel.hpp: In member function 'void CbcModel::setMIPStart(const
 std::vector<std::pair<std::basic_string<char>, double> >&)':
 CbcModel.hpp:2398:26: error: no match for 'operator=' (operand types are
 'std::vector<std::pair<std::basic_string<char>, double> >' and 'int')
         this->mipStart_ = mips;
                           ^
 }}}

 Because of the platform Cbc is built on (tested on mipsel and mips64el) it
 seems that somewhere ahead of this variable name has a constant definition
 named 'mips', causing 'mips' here be replaced by a "numeric constant" (it
 might be 1, representing "True").

 This problem prevents Cbc from building on mips* platforms. By replacing
 the variable name (See our patch: https://github.com/AOSC-Dev/aosc-os-
 abbs/blob/staging/extra-scientific/cbc/autobuild/patches/CbcModel-hpp-fix-
 mips-variable-constant-conflict.patch) this problem can be resolved.
 Enclosing it.

--
Ticket URL: <https://projects.coin-or.org/Cbc/ticket/176>
COIN-OR Branch-and-Cut MIP Solver <http://projects.coin-or.org/Cbc>
An LP-based branch-and-cut MIP solver.