R install package Rcplex

Question

I already follow INSTALL STEP at INSTALL but something wrong happen when I install the package

c:/Rtools/mingw_32/bin/gcc -I"C:/PROGRA~1/R/R-33~1.1/include" -DNDEBUG -I"C:/Program Files/IBM/ILOG/CPLEX_Studio_Community1263/cplex/include" -I"d:/Compiler/gcc-4.9.3/local330/include" -O3 -Wall -std=gnu99 -mtune=core2 -c Rcplex.c -o Rcplex.o
c:/Rtools/mingw_32/bin/gcc -I"C:/PROGRA~1/R/R-33~1.1/include" -DNDEBUG -I"C:/Program Files/IBM/ILOG/CPLEX_Studio_Community1263/cplex/include" -I"d:/Compiler/gcc-4.9.3/local330/include" -O3 -Wall -std=gnu99 -mtune=core2 -c Rcplex_QCP.c -o Rcplex_QCP.o
Rcplex_QCP.c: In function 'Rcplex_QCP':
Rcplex_QCP.c:37:7: warning: unused variable 'trace' [-Wunused-variable]
int trace = INTEGER(getListElement(control,"trace"))[0];
    ^
c:/Rtools/mingw_32/bin/gcc -I"C:/PROGRA~1/R/R-33~1.1/include" -DNDEBUG -I"C:/Program Files/IBM/ILOG/CPLEX_Studio_Community1263/cplex/include" -I"d:/Compiler/gcc-4.9.3/local330/include" -O3 -Wall -std=gnu99 -mtune=core2 -c Rcplex_params.c -o Rcplex_params.o
c:/Rtools/mingw_32/bin/gcc -I"C:/PROGRA~1/R/R-33~1.1/include" -DNDEBUG -I"C:/Program Files/IBM/ILOG/CPLEX_Studio_Community1263/cplex/include" -I"d:/Compiler/gcc-4.9.3/local330/include" -O3 -Wall -std=gnu99 -mtune=core2 -c Rcplex_utils.c -o Rcplex_utils.o
C:/Rtools/mingw_32/bin/../lib/gcc/i686-w64-mingw32/4.9.3/../../../../i686-w64-mingw32/bin/ld.exe: cannot find -lcplex1263
collect2.exe: error: ld returned 1 exit status
no DLL was created
ERROR: compilation failed for package 'Rcplex'

Answer 1

当您访问包文档时： https ： //cran.r-project.org/web/packages/Rcplex/index.html ...您没有提到满足系统要求：

SystemRequirements: IBM ILOG CPLEX libraries and headers

Answer 2

The linker that gcc uses, ld , cannot find the shared library for CPLEX. According to the INSTALL document, you need to verify that CPLEX_LIB_PATH is defined to point to the path where the CPLEX dll's are located. From your output, I'd venture

set CPLEX_LIB_PATH="C:/Program Files/IBM/ILOG/CPLEX_Studio_Community1263/cplex/lib"

is what you need.