Checking for ldconfig in make

How do I check for ldconfig in a makefile?

This makefile errors because it tries to run ldconfig, even though OS = Darwin and I have no idea why

Code:

---

ifeq ($(SHARED),1)
install: banner install_headers $(lib_target)
        @echo "Install shared library"
        cp -f ./$(lib_target) $(inst_path)
        cd $(inst_path) ; \
        ln -sf $(lib_target) $(libname_shared_major_version) ; \
        ln -sf $(libname_shared_major_version) $(libname_shared)
        ifneq ($(OS),Darwin)
                ldconfig
        endif
        @echo "Install shared library: Done."
else
install: banner install_headers $(lib_target)
        @echo "Install static library"
        cp -f ./$(lib_target) $(inst_path)
        @echo "Install static library: Done."
endif

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Errors

Code:

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/bin/sh: -c: line 0: syntax error near unexpected token `Darwin,Darwin'
/bin/sh: -c: line 0: `ifneq (Darwin,Darwin)'
make: *** [install] Error 2
make: ldconfig: No such file or directory
make: *** [uninstall] Error 1

---

The error message you are getting:

Quote:

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Originally Posted by ninja9578

...
Errors

Code:

---

/bin/sh: -c: line 0: syntax error near unexpected token `Darwin,Darwin'
/bin/sh: -c: line 0: `ifneq (Darwin,Darwin)'
make: *** [install] Error 2
make: ldconfig: No such file or directory
make: *** [uninstall] Error 1

---

---

is complaining about the ifneq($(OS),Darwin) line itself. So as it doesn't recognise this ifneq statement it runs on to the ldconfig regardless.

This is caused by a problem with the indenting - you shouldn't be indenting the OS check. Here is an example to show you. This code:

Code:

---

install:
        @echo "Hello "
        ifeq (1,1)
                @echo "World!"
        endif

---

gives this error:

Code:

---

Hello
ifeq (1,1)
/bin/sh: -c: line 0: syntax error near unexpected token `1,1'
/bin/sh: -c: line 0: `ifeq (1,1)'
make: *** [install] Error 2

---

which is similar to that which you are getting. To make it work, unindent the ifeq block:

Code:

---

install:
        @echo "Hello "
ifeq (1,1)
        @echo "World!"
endif

---

which outputs

Code:

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Hello
World!

---

as expected.

Oh, I didn't know that make was indentation sensitive

Quote:

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Originally Posted by ninja9578

Oh, I didn't know that make was indentation sensitive

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Yes, it is unfortunately. You have to use a tab to indent (which you are doing) rather than spaces also.

Definitely not the best design decision ever made... :(