Split the tasks a bit more, for more parallelization :-)

Testsuite/test/makefile

@@ -5,66 +5,185 @@
 # The "all" target is split in several parts (based on the first
 # character of each directory) to allow parallelization using "make -j".
 
-all: all0 all1 all2 all3 all4 all5 all6 all7 all8
+all: all_aA all_bB all_cC all_dD all_eE all_fF all_gG all_hH all_iI all_jJ all_kK all_lL all_mM all_nN all_oO all_pP all_qQ all_rR all_sS all_tT all_uU all_vV all_wW all_xX all_yY all_zZ
 
-all0:
+all_aA:
-	@+for DIR in [0-9_aAbBcC]* ; do \
+	@+for DIR in [0-9_aA]*; do \
 	if test -d "$$DIR"; then \
 	    ( ./run_testsuite "$$DIR" ) \
 	  fi; \
 	done
 
-all1:
+all_bB:
-	@+for DIR in [dDeEfF]*; do \
+	@+for DIR in [bB]*; do \
 	if test -d "$$DIR"; then \
 	    ( ./run_testsuite "$$DIR" ) \
 	  fi; \
 	done
 
-all2:
+all_cC:
-	@+for DIR in [gGhHiI]*; do \
+	@+for DIR in [cC]*; do \
 	if test -d "$$DIR"; then \
 	    ( ./run_testsuite "$$DIR" ) \
 	  fi; \
 	done
 
-all3:
+all_dD:
-	@+for DIR in [jJkKlL]*; do \
+	@+for DIR in [dD]*; do \
 	if test -d "$$DIR"; then \
 	    ( ./run_testsuite "$$DIR" ) \
 	  fi; \
 	done
 
-all4:
+all_eE:
-	@+for DIR in [mMnNoO]*; do \
+	@+for DIR in [eE]*; do \
 	if test -d "$$DIR"; then \
 	    ( ./run_testsuite "$$DIR" ) \
 	  fi; \
 	done
 
-all5:
+all_fF:
-	@+for DIR in [pPqQrR]*; do \
+	@+for DIR in [fF]*; do \
 	if test -d "$$DIR"; then \
 	    ( ./run_testsuite "$$DIR" ) \
 	  fi; \
 	done
 
-all6:
+all_gG:
-	@+for DIR in [sStTuU]*; do \
+	@+for DIR in [gG]*; do \
 	if test -d "$$DIR"; then \
 	    ( ./run_testsuite "$$DIR" ) \
 	  fi; \
 	done
 
-all7:
+all_hH:
-	@+for DIR in [vVwWxX]*; do \
+	@+for DIR in [hH]*; do \
 	if test -d "$$DIR"; then \
 	    ( ./run_testsuite "$$DIR" ) \
 	  fi; \
 	done
 
-all8:
+all_iI:
-	@+for DIR in [yYzZ]*; do \
+	@+for DIR in [iI]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_jJ:
+	@+for DIR in [jJ]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_kK:
+	@+for DIR in [kK]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_lL:
+	@+for DIR in [lL]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_mM:
+	@+for DIR in [mM]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_nN:
+	@+for DIR in [nN]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_oO:
+	@+for DIR in [oO]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_pP:
+	@+for DIR in [pP]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_qQ:
+	@+for DIR in [qQ]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_rR:
+	@+for DIR in [rR]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_sS:
+	@+for DIR in [sS]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_tT:
+	@+for DIR in [tT]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_uU:
+	@+for DIR in [uU]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_vV:
+	@+for DIR in [vV]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_wW:
+	@+for DIR in [wW]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_xX:
+	@+for DIR in [xX]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_yY:
+	@+for DIR in [yY]*; do \
+	if test -d "$$DIR"; then \
+	    ( ./run_testsuite "$$DIR" ) \
+	  fi; \
+	done
+
+all_zZ:
+	@+for DIR in [zZ]*; do \
 	if test -d "$$DIR"; then \
 	    ( ./run_testsuite "$$DIR" ) \
 	  fi; \