fixing the issue with openMP detection on linux

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: splikit
 Title: A toolkit for analysing RNA splicing in scRNA-seq data
-Version: 1.0.5
+Version: 1.0.6
 Authors@R: 
     person("Arsham", "Mikaeili Namini", , "arsham.mikaeilinamini@mail.mcgill.ca", role = c("aut", "cre"),
            comment = c(ORCID = "0000-0002-9453-6951"))
@@ -16,9 +16,8 @@ License: MIT + file LICENSE
 Encoding: UTF-8
 Roxygen: list(markdown = TRUE)
 RoxygenNote: 7.3.2
-Imports: Matrix, data.table, methods, stats, Rcpp, RcppArmadillo,
-        RcppEigen
-LinkingTo: Rcpp, RcppArmadillo, RcppEigen
+Imports: Matrix, data.table, methods, stats, Rcpp, RcppArmadillo
+LinkingTo: Rcpp, RcppArmadillo
 Suggests: testthat (>= 3.0.0)
 Config/testthat/edition: 3
 NeedsCompilation: yes

src/Makevars

@@ -0,0 +1,3 @@
+CXX_STD = CXX14
+PKG_CXXFLAGS = $(SHLIB_OPENMP_CXXFLAGS)
+PKG_LIBS = $(SHLIB_OPENMP_CXXFLAGS) $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS)

src/Makevars.win

@@ -1,4 +1,4 @@
 ## src/Makevars.win (Windows)
 CXX_STD = CXX14
-PKG_CXXFLAGS += -O2 -fopenmp
-PKG_LIBS     += -fopenmp $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS)
+PKG_CXXFLAGS = $(SHLIB_OPENMP_CXXFLAGS)
+PKG_LIBS = $(SHLIB_OPENMP_CXXFLAGS) $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS)

src/RcppExports.cpp

@@ -2,7 +2,6 @@
 // Generator token: 10BE3573-1514-4C36-9D1C-5A225CD40393
 
 #include <RcppArmadillo.h>
-#include <RcppEigen.h>
 #include <Rcpp.h>
 
 using namespace Rcpp;