add -lm to flags on smpicc smpicxx.

We already had these in smpif90/ff, anf gcc10 seems to not be using it by default.
So this could help compatibility with some (proxy apps) codes, if harmless on other setups. Let's see.

diff --git a/src/smpi/smpicc.in b/src/smpi/smpicc.in
index 7661c53..19e6f14 100755 (executable)
--- a/src/smpi/smpicc.in
+++ b/src/smpi/smpicc.in
@@ -37,7 +37,7 @@ elif [ "x@APPLE@" = "x1" ]; then
        echo "Warning: smpicc pretends to be a regular compiler (SMPI_PRETEND_CC is set). Produced binaries will not be usable in SimGrid."
     fi
     if [ "x${SMPI_NO_UNDEFINED_CHECK}" = "x" ]; then
-      list_add LINKARGS "-lsimgrid" ${LINKER_UNDEFINED_ERROR:+"-Wl,-undefined,error"}
+      list_add LINKARGS "-lsimgrid" "-lm" ${LINKER_UNDEFINED_ERROR:+"-Wl,-undefined,error"}
     fi
 else
     list_add CFLAGS "-fPIC"
@@ -48,7 +48,7 @@ else
        echo "Warning: smpicc pretends to be a regular compiler (SMPI_PRETEND_CC is set). Produced binaries will not be usable in SimGrid."
     fi
     if [ "x${SMPI_NO_UNDEFINED_CHECK}" = "x" ]; then
-      list_add LINKARGS "-lsimgrid" ${LINKER_UNDEFINED_ERROR:+"-Wl,-z,defs"}
+      list_add LINKARGS "-lsimgrid" "-lm" ${LINKER_UNDEFINED_ERROR:+"-Wl,-z,defs"}
     fi
 fi
 

diff --git a/src/smpi/smpicxx.in b/src/smpi/smpicxx.in
index c4af9cf..5c7d39c 100755 (executable)
--- a/src/smpi/smpicxx.in
+++ b/src/smpi/smpicxx.in
@@ -37,7 +37,7 @@ elif [ "x@APPLE@" = "x1" ]; then
        echo "Warning: smpicc pretends to be a regular compiler (SMPI_PRETEND_CC is set). Produced binaries will not be usable in SimGrid."
     fi
     if [ "x${SMPI_NO_UNDEFINED_CHECK}" = "x" ]; then
-      list_add LINKARGS "-lsimgrid" ${LINKER_UNDEFINED_ERROR:+"-Wl,-undefined,error"}
+      list_add LINKARGS "-lsimgrid" "-lm" ${LINKER_UNDEFINED_ERROR:+"-Wl,-undefined,error"}
     fi
 else
     list_add CXXFLAGS "-fPIC"
@@ -48,7 +48,7 @@ else
        echo "Warning: smpicc pretends to be a regular compiler (SMPI_PRETEND_CC is set). Produced binaries will not be usable in SimGrid."
     fi
     if [ "x${SMPI_NO_UNDEFINED_CHECK}" = "x" ]; then
-      list_add LINKARGS "-lsimgrid" ${LINKER_UNDEFINED_ERROR:+"-Wl,-z,defs"}
+      list_add LINKARGS "-lsimgrid" "-lm"  ${LINKER_UNDEFINED_ERROR:+"-Wl,-z,defs"}
     fi
 fi